69257140 has 24 divisors (see below), whose sum is σ = 151764480. Its totient is φ = 26498208.

The previous prime is 69257119. The next prime is 69257189. The reversal of 69257140 is 4175296.

It is a junction number, because it is equal to n+sod(n) for n = 69257096 and 69257105.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 74820 + ... + 75739.

It is an arithmetic number, because the mean of its divisors is an integer number (6323520).

Almost surely, 2^69257140 is an apocalyptic number.

It is an amenable number.

69257140 is an abundant number, since it is smaller than the sum of its proper divisors (82507340).

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

69257140 is a wasteful number, since it uses less digits than its factorization.

69257140 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 150591 (or 150589 counting only the distinct ones).

The product of its (nonzero) digits is 15120, while the sum is 34.

The square root of 69257140 is about 8322.0874785116. The cubic root of 69257140 is about 410.6654669925.

The spelling of 69257140 in words is "sixty-nine million, two hundred fifty-seven thousand, one hundred forty".