690033330 has 160 divisors (see below), whose sum is σ = 2138970240. Its totient is φ = 156349440.

The previous prime is 690033319. The next prime is 690033347. The reversal of 690033330 is 33330096.

It is a super-2 number, since 2×690033330² = 952291993021777800, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 690033294 and 690033303.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 79 ways as a sum of consecutive naturals, for example, 742306 + ... + 743234.

It is an arithmetic number, because the mean of its divisors is an integer number (13368564).

Almost surely, 2^690033330 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 690033330, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1069485120).

690033330 is an abundant number, since it is smaller than the sum of its proper divisors (1448936910).

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

690033330 is a wasteful number, since it uses less digits than its factorization.

690033330 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1086 (or 1077 counting only the distinct ones).

The product of its (nonzero) digits is 4374, while the sum is 27.

The square root of 690033330 is about 26268.4854911736. The cubic root of 690033330 is about 883.6698201470.

The spelling of 690033330 in words is "six hundred ninety million, thirty-three thousand, three hundred thirty".