69120940 has 24 divisors (see below), whose sum is σ = 165890592. Its totient is φ = 23698560.

The previous prime is 69120923. The next prime is 69120943. The reversal of 69120940 is 4902196.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (69120943) 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, 246721 + ... + 247000.

It is an arithmetic number, because the mean of its divisors is an integer number (6912108).

Almost surely, 2^69120940 is an apocalyptic number.

It is an amenable number.

69120940 is an abundant number, since it is smaller than the sum of its proper divisors (96769652).

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

69120940 is a wasteful number, since it uses less digits than its factorization.

69120940 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 493737 (or 493735 counting only the distinct ones).

The product of its (nonzero) digits is 3888, while the sum is 31.

The square root of 69120940 is about 8313.9004083523. The cubic root of 69120940 is about 410.3960875845.

The spelling of 69120940 in words is "sixty-nine million, one hundred twenty thousand, nine hundred forty".