3420188840 has 32 divisors (see below), whose sum is σ = 7883121960. Its totient is φ = 1334707200.

The previous prime is 3420188819. The next prime is 3420188899. The reversal of 3420188840 is 488810243.

It can be written as a sum of positive squares in 4 ways, for example, as 2829601636 + 590587204 = 53194^2 + 24302^2 .

It is a junction number, because it is equal to n+sod(n) for n = 3420188794 and 3420188803.

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, 1041101 + ... + 1044380.

Almost surely, 2^3420188840 is an apocalyptic number.

It is an amenable number.

3420188840 is an abundant number, since it is smaller than the sum of its proper divisors (4462933120).

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

3420188840 is a wasteful number, since it uses less digits than its factorization.

3420188840 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2085533 (or 2085529 counting only the distinct ones).

The product of its (nonzero) digits is 49152, while the sum is 38.

The square root of 3420188840 is about 58482.3805945004. The cubic root of 3420188840 is about 1506.6649844222.

The spelling of 3420188840 in words is "three billion, four hundred twenty million, one hundred eighty-eight thousand, eight hundred forty".