690374272 has 128 divisors (see below), whose sum is σ = 1674432000. Its totient is φ = 276950016.

The previous prime is 690374263. The next prime is 690374299. The reversal of 690374272 is 272473096.

It is a tau number, because it is divible by the number of its divisors (128).

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, 1821379 + ... + 1821757.

It is an arithmetic number, because the mean of its divisors is an integer number (13081500).

Almost surely, 2^690374272 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 690374272, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (837216000).

690374272 is an abundant number, since it is smaller than the sum of its proper divisors (984057728).

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

690374272 is a wasteful number, since it uses less digits than its factorization.

690374272 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 526 (or 514 counting only the distinct ones).

The product of its (nonzero) digits is 127008, while the sum is 40.

The square root of 690374272 is about 26274.9742530797. The cubic root of 690374272 is about 883.8153351224.

The spelling of 690374272 in words is "six hundred ninety million, three hundred seventy-four thousand, two hundred seventy-two".