1564240530 has 32 divisors (see below), whose sum is σ = 3791354688. Its totient is φ = 413000000.

The previous prime is 1564240529. The next prime is 1564240571. The reversal of 1564240530 is 350424651.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a Curzon 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, 255096 + ... + 261155.

It is an arithmetic number, because the mean of its divisors is an integer number (118479834).

Almost surely, 2^1564240530 is an apocalyptic number.

1564240530 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1564240530 is an abundant number, since it is smaller than the sum of its proper divisors (2227114158).

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

1564240530 is a wasteful number, since it uses less digits than its factorization.

1564240530 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 516362.

The product of its (nonzero) digits is 14400, while the sum is 30.

The square root of 1564240530 is about 39550.4807808957. The cubic root of 1564240530 is about 1160.8279191602.

The spelling of 1564240530 in words is "one billion, five hundred sixty-four million, two hundred forty thousand, five hundred thirty".