69331240 has 32 divisors (see below), whose sum is σ = 170177760. Its totient is φ = 25211200.

The previous prime is 69331217. The next prime is 69331243. The reversal of 69331240 is 4213396.

It is a junction number, because it is equal to n+sod(n) for n = 69331199 and 69331208.

It is not an unprimeable number, because it can be changed into a prime (69331243) 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, 78346 + ... + 79225.

It is an arithmetic number, because the mean of its divisors is an integer number (5318055).

Almost surely, 2^69331240 is an apocalyptic number.

It is an amenable number.

69331240 is an abundant number, since it is smaller than the sum of its proper divisors (100846520).

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

69331240 is a wasteful number, since it uses less digits than its factorization.

69331240 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 157593 (or 157589 counting only the distinct ones).

The product of its (nonzero) digits is 3888, while the sum is 28.

The square root of 69331240 is about 8326.5382963150. The cubic root of 69331240 is about 410.8118753139.

The spelling of 69331240 in words is "sixty-nine million, three hundred thirty-one thousand, two hundred forty".