1158352720 has 40 divisors (see below), whose sum is σ = 3077910144. Its totient is φ = 397149312.

The previous prime is 1158352691. The next prime is 1158352721. The reversal of 1158352720 is 272538511.

It is a tau number, because it is divible by the number of its divisors (40).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1158352721) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1033684 + ... + 1034803.

Almost surely, 2^1158352720 is an apocalyptic number.

1158352720 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1158352720 is an abundant number, since it is smaller than the sum of its proper divisors (1919557424).

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

1158352720 is a wasteful number, since it uses less digits than its factorization.

1158352720 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2068507 (or 2068501 counting only the distinct ones).

The product of its (nonzero) digits is 16800, while the sum is 34.

The square root of 1158352720 is about 34034.5812373239. The cubic root of 1158352720 is about 1050.2199750760.

The spelling of 1158352720 in words is "one billion, one hundred fifty-eight million, three hundred fifty-two thousand, seven hundred twenty".