1150518420 has 72 divisors (see below), whose sum is σ = 3641654016. Its totient is φ = 293464512.

The previous prime is 1150518409. The next prime is 1150518497. The reversal of 1150518420 is 248150511.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 134812 + ... + 143091.

It is an arithmetic number, because the mean of its divisors is an integer number (50578528).

Almost surely, 2^1150518420 is an apocalyptic number.

1150518420 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1150518420 is an abundant number, since it is smaller than the sum of its proper divisors (2491135596).

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

1150518420 is a wasteful number, since it uses less digits than its factorization.

1150518420 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 277941 (or 277936 counting only the distinct ones).

The product of its (nonzero) digits is 1600, while the sum is 27.

The square root of 1150518420 is about 33919.2927402680. The cubic root of 1150518420 is about 1047.8469623375.

Adding to 1150518420 its reverse (248150511), we get a palindrome (1398668931).

The spelling of 1150518420 in words is "one billion, one hundred fifty million, five hundred eighteen thousand, four hundred twenty".