1878607120 has 40 divisors (see below), whose sum is σ = 4703745816. Its totient is φ = 693639168.

The previous prime is 1878607097. The next prime is 1878607147. The reversal of 1878607120 is 217068781.

It can be written as a sum of positive squares in 4 ways, for example, as 401281024 + 1477326096 = 20032^2 + 38436^2 .

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

It is a super-2 number, since 2×1878607120² = 7058329422629388800, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (40).

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 902137 + ... + 904216.

Almost surely, 2^1878607120 is an apocalyptic number.

1878607120 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1878607120 is an abundant number, since it is smaller than the sum of its proper divisors (2825138696).

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

1878607120 is a wasteful number, since it uses less digits than its factorization.

1878607120 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1806379 (or 1806373 counting only the distinct ones).

The product of its (nonzero) digits is 37632, while the sum is 40.

The square root of 1878607120 is about 43342.9016102983. The cubic root of 1878607120 is about 1233.8962793284.

The spelling of 1878607120 in words is "one billion, eight hundred seventy-eight million, six hundred seven thousand, one hundred twenty".