1860408396 has 432 divisors, whose sum is σ = 6490306368. Its totient is φ = 437944320.

The previous prime is 1860408307. The next prime is 1860408401. The reversal of 1860408396 is 6938040681.

1860408396 is a `hidden beast` number, since 1 + 8 + 604 + 0 + 8 + 39 + 6 = 666.

1860408396 is digitally balanced in base 4, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×1860408396² = 6922238799814585632, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 143 ways as a sum of consecutive naturals, for example, 19179420 + ... + 19179516.

Almost surely, 2^1860408396 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1860408396, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3245153184).

1860408396 is an abundant number, since it is smaller than the sum of its proper divisors (4629897972).

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

1860408396 is a wasteful number, since it uses less digits than its factorization.

1860408396 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 190 (or 174 counting only the distinct ones).

The product of its (nonzero) digits is 248832, while the sum is 45.

The square root of 1860408396 is about 43132.4517735776. The cubic root of 1860408396 is about 1229.8989486684.

The spelling of 1860408396 in words is "one billion, eight hundred sixty million, four hundred eight thousand, three hundred ninety-six".