1240020552 has 32 divisors (see below), whose sum is σ = 3166012800. Its totient is φ = 404545344.

The previous prime is 1240020547. The next prime is 1240020589. The reversal of 1240020552 is 2550200421.

It is a happy number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 548527 + ... + 550782.

It is an arithmetic number, because the mean of its divisors is an integer number (98937900).

Almost surely, 2^1240020552 is an apocalyptic number.

1240020552 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

1240020552 is an abundant number, since it is smaller than the sum of its proper divisors (1925992248).

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

1240020552 is a wasteful number, since it uses less digits than its factorization.

1240020552 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1099365 (or 1099361 counting only the distinct ones).

The product of its (nonzero) digits is 800, while the sum is 21.

The square root of 1240020552 is about 35213.9255408993. The cubic root of 1240020552 is about 1074.3430063797.

Adding to 1240020552 its reverse (2550200421), we get a palindrome (3790220973).

The spelling of 1240020552 in words is "one billion, two hundred forty million, twenty thousand, five hundred fifty-two".