69013920 has 48 divisors (see below), whose sum is σ = 217395360. Its totient is φ = 18403584.

The previous prime is 69013891. The next prime is 69013921. The reversal of 69013920 is 2931096.

It is a tau number, because it is divible by the number of its divisors (48).

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

It is not an unprimeable number, because it can be changed into a prime (69013921) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 71410 + ... + 72369.

It is an arithmetic number, because the mean of its divisors is an integer number (4529070).

Almost surely, 2^69013920 is an apocalyptic number.

69013920 is a gapful number since it is divisible by the number (60) formed by its first and last digit.

It is an amenable number.

69013920 is an abundant number, since it is smaller than the sum of its proper divisors (148381440).

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

69013920 is a wasteful number, since it uses less digits than its factorization.

69013920 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 143797 (or 143789 counting only the distinct ones).

The product of its (nonzero) digits is 2916, while the sum is 30.

The square root of 69013920 is about 8307.4617062012. The cubic root of 69013920 is about 410.1841726605.

The spelling of 69013920 in words is "sixty-nine million, thirteen thousand, nine hundred twenty".