1158377858 has 32 divisors (see below), whose sum is σ = 2044932480. Its totient is φ = 486204160.

The previous prime is 1158377813. The next prime is 1158377939. The reversal of 1158377858 is 8587738511.

It is a Harshad number since it is a multiple of its sum of digits (53).

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, 9398 + ... + 49041.

It is an arithmetic number, because the mean of its divisors is an integer number (63904140).

Almost surely, 2^1158377858 is an apocalyptic number.

1158377858 is a deficient number, since it is larger than the sum of its proper divisors (886554622).

1158377858 is a wasteful number, since it uses less digits than its factorization.

1158377858 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 58522.

The product of its digits is 1881600, while the sum is 53.

The square root of 1158377858 is about 34034.9505361768. The cubic root of 1158377858 is about 1050.2275721399.

The spelling of 1158377858 in words is "one billion, one hundred fifty-eight million, three hundred seventy-seven thousand, eight hundred fifty-eight".