690950400 has 432 divisors, whose sum is σ = 2682578304. Its totient is φ = 153354240.

The previous prime is 690950341. The next prime is 690950419. The reversal of 690950400 is 4059096.

It is a happy number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 7123152 + ... + 7123248.

It is an arithmetic number, because the mean of its divisors is an integer number (6209672).

Almost surely, 2^690950400 is an apocalyptic number.

690950400 is a gapful number since it is divisible by the number (60) 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 690950400, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1341289152).

690950400 is an abundant number, since it is smaller than the sum of its proper divisors (1991627904).

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

690950400 is a wasteful number, since it uses less digits than its factorization.

690950400 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 186 (or 167 counting only the distinct ones).

The product of its (nonzero) digits is 9720, while the sum is 33.

The square root of 690950400 is about 26285.9354027967. The cubic root of 690950400 is about 884.0611192838.

The spelling of 690950400 in words is "six hundred ninety million, nine hundred fifty thousand, four hundred".