69015040 has 40 divisors (see below), whose sum is σ = 165480480. Its totient is φ = 27604992.

The previous prime is 69015031. The next prime is 69015059. The reversal of 69015040 is 4051096.

It is a tau number, because it is divible by the number of its divisors (40).

It is a junction number, because it is equal to n+sod(n) for n = 69014996 and 69015014.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 10920 + ... + 16039.

It is an arithmetic number, because the mean of its divisors is an integer number (4137012).

Almost surely, 2^69015040 is an apocalyptic number.

It is an amenable number.

69015040 is an abundant number, since it is smaller than the sum of its proper divisors (96465440).

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

69015040 is an equidigital number, since it uses as much as digits as its factorization.

69015040 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26982 (or 26966 counting only the distinct ones).

The product of its (nonzero) digits is 1080, while the sum is 25.

The square root of 69015040 is about 8307.5291152063. The cubic root of 69015040 is about 410.1863915548.

The spelling of 69015040 in words is "sixty-nine million, fifteen thousand, forty".