69240885 has 16 divisors (see below), whose sum is σ = 126612096. Its totient is φ = 31652928.

The previous prime is 69240851. The next prime is 69240907. The reversal of 69240885 is 58804296.

It is not a de Polignac number, because 69240885 - 2⁷ = 69240757 is a prime.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 329614 + ... + 329823.

It is an arithmetic number, because the mean of its divisors is an integer number (7913256).

Almost surely, 2^69240885 is an apocalyptic number.

It is an amenable number.

69240885 is a deficient number, since it is larger than the sum of its proper divisors (57371211).

69240885 is a wasteful number, since it uses less digits than its factorization.

69240885 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 659452.

The product of its (nonzero) digits is 138240, while the sum is 42.

The square root of 69240885 is about 8321.1108032522. The cubic root of 69240885 is about 410.6333360600.

It can be divided in two parts, 69240 and 885, that added together give a triangular number (70125 = T₃₇₄).

The spelling of 69240885 in words is "sixty-nine million, two hundred forty thousand, eight hundred eighty-five".