3420917628 has 24 divisors (see below), whose sum is σ = 7992905088. Its totient is φ = 1138768176.

The previous prime is 3420917623. The next prime is 3420917641. The reversal of 3420917628 is 8267190243.

It is a super-2 number, since 2×3420917628² = 23405354835122292768, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 3420917628.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3420917623) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 182926 + ... + 200757.

It is an arithmetic number, because the mean of its divisors is an integer number (333037712).

Almost surely, 2^3420917628 is an apocalyptic number.

It is an amenable number.

3420917628 is an abundant number, since it is smaller than the sum of its proper divisors (4571987460).

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

3420917628 is a wasteful number, since it uses less digits than its factorization.

3420917628 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 384433 (or 384431 counting only the distinct ones).

The product of its (nonzero) digits is 145152, while the sum is 42.

The square root of 3420917628 is about 58488.6110965203. The cubic root of 3420917628 is about 1506.7719922932.

The spelling of 3420917628 in words is "three billion, four hundred twenty million, nine hundred seventeen thousand, six hundred twenty-eight".