69470640 has 60 divisors (see below), whose sum is σ = 233307984. Its totient is φ = 18525312.

The previous prime is 69470623. The next prime is 69470683. The reversal of 69470640 is 4607496.

69470640 is a `hidden beast` number, since 6 + 9 + 4 + 7 + 0 + 640 = 666.

It is a tau number, because it is divible by the number of its divisors (60).

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 = 69470595 and 69470604.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 47524 + ... + 48963.

Almost surely, 2^69470640 is an apocalyptic number.

69470640 is a gapful number since it is divisible by the number (60) formed by its first and last digit.

It is an amenable number.

69470640 is an abundant number, since it is smaller than the sum of its proper divisors (163837344).

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

69470640 is a wasteful number, since it uses less digits than its factorization.

69470640 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 96506 (or 96497 counting only the distinct ones).

The product of its (nonzero) digits is 36288, while the sum is 36.

The square root of 69470640 is about 8334.9049184739. The cubic root of 69470640 is about 411.0870222609.

The spelling of 69470640 in words is "sixty-nine million, four hundred seventy thousand, six hundred forty".