1572540530 has 32 divisors (see below), whose sum is σ = 3159718848. Its totient is φ = 558532800.

The previous prime is 1572540479. The next prime is 1572540551. The reversal of 1572540530 is 350452751.

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, 161501 + ... + 170960.

It is an arithmetic number, because the mean of its divisors is an integer number (98741214).

Almost surely, 2^1572540530 is an apocalyptic number.

1572540530 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1572540530 is an abundant number, since it is smaller than the sum of its proper divisors (1587178318).

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

1572540530 is a wasteful number, since it uses less digits than its factorization.

1572540530 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 332522.

The product of its (nonzero) digits is 21000, while the sum is 32.

The square root of 1572540530 is about 39655.2711502519. The cubic root of 1572540530 is about 1162.8774506397.

The spelling of 1572540530 in words is "one billion, five hundred seventy-two million, five hundred forty thousand, five hundred thirty".