3420155760 has 80 divisors (see below), whose sum is σ = 12117129216. Its totient is φ = 781749504.

The previous prime is 3420155749. The next prime is 3420155779. The reversal of 3420155760 is 675510243.

It is a tau number, because it is divible by the number of its divisors (80).

It is a super-2 number, since 2×3420155760² = 23394930845322355200, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1016224 + ... + 1019583.

Almost surely, 2^3420155760 is an apocalyptic number.

3420155760 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is an amenable number.

3420155760 is an abundant number, since it is smaller than the sum of its proper divisors (8696973456).

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

3420155760 is a wasteful number, since it uses less digits than its factorization.

3420155760 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2035830 (or 2035824 counting only the distinct ones).

The product of its (nonzero) digits is 25200, while the sum is 33.

The square root of 3420155760 is about 58482.0977735922. The cubic root of 3420155760 is about 1506.6601269284.

The spelling of 3420155760 in words is "three billion, four hundred twenty million, one hundred fifty-five thousand, seven hundred sixty".