3420518840 has 32 divisors (see below), whose sum is σ = 7811041680. Its totient is φ = 1347785472.

The previous prime is 3420518831. The next prime is 3420518851. The reversal of 3420518840 is 488150243.

It is a self number, because there is not a number n which added to its sum of digits gives 3420518840.

It is a congruent number.

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, 635477 + ... + 640836.

Almost surely, 2^3420518840 is an apocalyptic number.

It is an amenable number.

3420518840 is an abundant number, since it is smaller than the sum of its proper divisors (4390522840).

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

3420518840 is a wasteful number, since it uses less digits than its factorization.

3420518840 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1276391 (or 1276387 counting only the distinct ones).

The product of its (nonzero) digits is 30720, while the sum is 35.

The square root of 3420518840 is about 58485.2018890249. The cubic root of 3420518840 is about 1506.7134401730.

The spelling of 3420518840 in words is "three billion, four hundred twenty million, five hundred eighteen thousand, eight hundred forty".