1150564420 has 72 divisors (see below), whose sum is σ = 2674799064. Its totient is φ = 414256128.

The previous prime is 1150564409. The next prime is 1150564447. The reversal of 1150564420 is 244650511.

It can be written as a sum of positive squares in 4 ways, for example, as 16760836 + 1133803584 = 4094^2 + 33672^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 176662 + ... + 183058.

It is an arithmetic number, because the mean of its divisors is an integer number (37149987).

Almost surely, 2^1150564420 is an apocalyptic number.

1150564420 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1150564420, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1337399532).

1150564420 is an abundant number, since it is smaller than the sum of its proper divisors (1524234644).

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

1150564420 is a wasteful number, since it uses less digits than its factorization.

1150564420 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6469 (or 6444 counting only the distinct ones).

The product of its (nonzero) digits is 4800, while the sum is 28.

The square root of 1150564420 is about 33919.9708136667. The cubic root of 1150564420 is about 1047.8609271488.

It can be divided in two parts, 11505644 and 20, that added together give a square (11505664 = 3392²).

The spelling of 1150564420 in words is "one billion, one hundred fifty million, five hundred sixty-four thousand, four hundred twenty".