697415040 has 384 divisors, whose sum is σ = 2816424000. Its totient is φ = 158957568.

The previous prime is 697415023. The next prime is 697415057. The reversal of 697415040 is 40514796.

It is an interprime number because it is at equal distance from previous prime (697415023) and next prime (697415057).

It is a tau number, because it is divible by the number of its divisors (384).

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a junction number, because it is equal to n+sod(n) for n = 697414986 and 697415004.

It is a congruent 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, 1975504 + ... + 1975856.

Almost surely, 2^697415040 is an apocalyptic number.

697415040 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 697415040, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1408212000).

697415040 is an abundant number, since it is smaller than the sum of its proper divisors (2119008960).

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

697415040 is a wasteful number, since it uses less digits than its factorization.

697415040 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 399 (or 370 counting only the distinct ones).

The product of its (nonzero) digits is 30240, while the sum is 36.

The square root of 697415040 is about 26408.6167755905. The cubic root of 697415040 is about 886.8097029938.

The spelling of 697415040 in words is "six hundred ninety-seven million, four hundred fifteen thousand, forty".