1856874004 has 12 divisors (see below), whose sum is σ = 3250734228. Its totient is φ = 928092800.

The previous prime is 1856873983. The next prime is 1856874023. The reversal of 1856874004 is 4004786581.

It can be written as a sum of positive squares in 2 ways, for example, as 267257104 + 1589616900 = 16348^2 + 39870^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 73717 + ... + 95644.

It is an arithmetic number, because the mean of its divisors is an integer number (270894519).

Almost surely, 2^1856874004 is an apocalyptic number.

It is an amenable number.

1856874004 is a deficient number, since it is larger than the sum of its proper divisors (1393860224).

1856874004 is a wasteful number, since it uses less digits than its factorization.

1856874004 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 172106 (or 172104 counting only the distinct ones).

The product of its (nonzero) digits is 215040, while the sum is 43.

The square root of 1856874004 is about 43091.4609174486. The cubic root of 1856874004 is about 1229.1196035365.

The spelling of 1856874004 in words is "one billion, eight hundred fifty-six million, eight hundred seventy-four thousand, four".