697340440 has 16 divisors (see below), whose sum is σ = 1569016080. Its totient is φ = 278936160.

The previous prime is 697340429. The next prime is 697340453. The reversal of 697340440 is 44043796.

It is a self number, because there is not a number n which added to its sum of digits gives 697340440.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 8716716 + ... + 8716795.

It is an arithmetic number, because the mean of its divisors is an integer number (98063505).

Almost surely, 2^697340440 is an apocalyptic number.

It is an amenable number.

697340440 is an abundant number, since it is smaller than the sum of its proper divisors (871675640).

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

697340440 is a wasteful number, since it uses less digits than its factorization.

697340440 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17433522 (or 17433518 counting only the distinct ones).

The product of its (nonzero) digits is 72576, while the sum is 37.

The square root of 697340440 is about 26407.2043200336. The cubic root of 697340440 is about 886.7780822424.

The spelling of 697340440 in words is "six hundred ninety-seven million, three hundred forty thousand, four hundred forty".