69469540 has 24 divisors (see below), whose sum is σ = 166727232. Its totient is φ = 23818080.

The previous prime is 69469537. The next prime is 69469541. The reversal of 69469540 is 4596496.

69469540 = 352² + 353² + ... + 631².

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (69469541) 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, 247966 + ... + 248245.

It is an arithmetic number, because the mean of its divisors is an integer number (6946968).

Almost surely, 2^69469540 is an apocalyptic number.

It is an amenable number.

69469540 is an abundant number, since it is smaller than the sum of its proper divisors (97257692).

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

69469540 is a wasteful number, since it uses less digits than its factorization.

69469540 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 496227 (or 496225 counting only the distinct ones).

The product of its (nonzero) digits is 233280, while the sum is 43.

The square root of 69469540 is about 8334.8389306573. The cubic root of 69469540 is about 411.0848525284.

The spelling of 69469540 in words is "sixty-nine million, four hundred sixty-nine thousand, five hundred forty".