690406332 has 96 divisors (see below), whose sum is σ = 2073329664. Its totient is φ = 173534400.

The previous prime is 690406313. The next prime is 690406351. The reversal of 690406332 is 233604096.

690406332 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (690406313) and next prime (690406351).

It is a Harshad number since it is a multiple of its sum of digits (33).

It is a junction number, because it is equal to n+sod(n) for n = 690406293 and 690406302.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 16593 + ... + 40695.

It is an arithmetic number, because the mean of its divisors is an integer number (21597184).

Almost surely, 2^690406332 is an apocalyptic number.

690406332 is a gapful number since it is divisible by the number (62) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 690406332, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1036664832).

690406332 is an abundant number, since it is smaller than the sum of its proper divisors (1382923332).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

690406332 is a wasteful number, since it uses less digits than its factorization.

690406332 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24159 (or 24157 counting only the distinct ones).

The product of its (nonzero) digits is 23328, while the sum is 33.

The square root of 690406332 is about 26275.5843322275. The cubic root of 690406332 is about 883.8290159533.

The spelling of 690406332 in words is "six hundred ninety million, four hundred six thousand, three hundred thirty-two".