1180220538 has 32 divisors (see below), whose sum is σ = 2698692480. Its totient is φ = 337075200.

The previous prime is 1180220519. The next prime is 1180220557. The reversal of 1180220538 is 8350220811.

It is an interprime number because it is at equal distance from previous prime (1180220519) and next prime (1180220557).

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, 173098 + ... + 179786.

It is an arithmetic number, because the mean of its divisors is an integer number (84334140).

Almost surely, 2^1180220538 is an apocalyptic number.

1180220538 is an abundant number, since it is smaller than the sum of its proper divisors (1518471942).

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

1180220538 is a wasteful number, since it uses less digits than its factorization.

1180220538 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10902.

The product of its (nonzero) digits is 3840, while the sum is 30.

The square root of 1180220538 is about 34354.3379793586. The cubic root of 1180220538 is about 1056.7876337323.

The spelling of 1180220538 in words is "one billion, one hundred eighty million, two hundred twenty thousand, five hundred thirty-eight".