69572540 has 12 divisors (see below), whose sum is σ = 146102376. Its totient is φ = 27829008.

The previous prime is 69572527. The next prime is 69572561. The reversal of 69572540 is 4527596.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 69572494 and 69572503.

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, 1739294 + ... + 1739333.

It is an arithmetic number, because the mean of its divisors is an integer number (12175198).

Almost surely, 2^69572540 is an apocalyptic number.

It is an amenable number.

69572540 is an abundant number, since it is smaller than the sum of its proper divisors (76529836).

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

69572540 is a wasteful number, since it uses less digits than its factorization.

69572540 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3478636 (or 3478634 counting only the distinct ones).

The product of its (nonzero) digits is 75600, while the sum is 38.

The square root of 69572540 is about 8341.0155257019. The cubic root of 69572540 is about 411.2879191330.

The spelling of 69572540 in words is "sixty-nine million, five hundred seventy-two thousand, five hundred forty".