696045840 has 80 divisors (see below), whose sum is σ = 2465996928. Its totient is φ = 159095808.

The previous prime is 696045811. The next prime is 696045851. The reversal of 696045840 is 48540696.

It is a tau number, because it is divible by the number of its divisors (80).

It is a super-2 number, since 2×696045840² = 968959622762611200, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (42).

It is a junction number, because it is equal to n+sod(n) for n = 696045792 and 696045801.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 205477 + ... + 208836.

Almost surely, 2^696045840 is an apocalyptic number.

696045840 is a gapful number since it is divisible by the number (60) formed by its first and last digit.

It is an amenable number.

696045840 is an abundant number, since it is smaller than the sum of its proper divisors (1769951088).

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

696045840 is a wasteful number, since it uses less digits than its factorization.

696045840 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 414336 (or 414330 counting only the distinct ones).

The product of its (nonzero) digits is 207360, while the sum is 42.

The square root of 696045840 is about 26382.6806825993. The cubic root of 696045840 is about 886.2289797759.

The spelling of 696045840 in words is "six hundred ninety-six million, forty-five thousand, eight hundred forty".