690265344 has 144 divisors (see below), whose sum is σ = 1925611520. Its totient is φ = 219248640.

The previous prime is 690265339. The next prime is 690265361. The reversal of 690265344 is 443562096.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1880649 + ... + 1881015.

Almost surely, 2^690265344 is an apocalyptic number.

690265344 is a gapful number since it is divisible by the number (64) 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 690265344, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (962805760).

690265344 is an abundant number, since it is smaller than the sum of its proper divisors (1235346176).

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

690265344 is a wasteful number, since it uses less digits than its factorization.

690265344 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 496 (or 482 counting only the distinct ones).

The product of its (nonzero) digits is 155520, while the sum is 39.

The square root of 690265344 is about 26272.9013243684. The cubic root of 690265344 is about 883.7688495640.

The spelling of 690265344 in words is "six hundred ninety million, two hundred sixty-five thousand, three hundred forty-four".