1167859440 has 120 divisors (see below), whose sum is σ = 4278641328. Its totient is φ = 283115520.

The previous prime is 1167859439. The next prime is 1167859471. The reversal of 1167859440 is 449587611.

1167859440 is a `hidden beast` number, since 1 + 16 + 7 + 8 + 594 + 40 = 666.

It is a tau number, because it is divible by the number of its divisors (120).

It is a super-2 number, since 2×1167859440² = 2727791343194227200, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a congruent number.

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, 65809 + ... + 81648.

Almost surely, 2^1167859440 is an apocalyptic number.

1167859440 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1167859440 is an abundant number, since it is smaller than the sum of its proper divisors (3110781888).

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

1167859440 is a wasteful number, since it uses less digits than its factorization.

1167859440 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 147487 (or 147478 counting only the distinct ones).

The product of its (nonzero) digits is 241920, while the sum is 45.

The square root of 1167859440 is about 34173.9585064417. The cubic root of 1167859440 is about 1053.0852386201.

The spelling of 1167859440 in words is "one billion, one hundred sixty-seven million, eight hundred fifty-nine thousand, four hundred forty".