69040920 has 64 divisors (see below), whose sum is σ = 223060320. Its totient is φ = 16994304.

The previous prime is 69040913. The next prime is 69040931. The reversal of 69040920 is 2904096.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a congruent number.

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, 20569 + ... + 23688.

Almost surely, 2^69040920 is an apocalyptic number.

69040920 is a gapful number since it is divisible by the number (60) formed by its first and last digit.

It is an amenable number.

69040920 is an abundant number, since it is smaller than the sum of its proper divisors (154019400).

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

69040920 is a wasteful number, since it uses less digits than its factorization.

69040920 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 44284 (or 44280 counting only the distinct ones).

The product of its (nonzero) digits is 3888, while the sum is 30.

The square root of 69040920 is about 8309.0865923999. The cubic root of 69040920 is about 410.2376571783.

The spelling of 69040920 in words is "sixty-nine million, forty thousand, nine hundred twenty".