3402447920 has 40 divisors (see below), whose sum is σ = 7914163104. Its totient is φ = 1360381952.

The previous prime is 3402447913. The next prime is 3402447941. The reversal of 3402447920 is 297442043.

It is a tau number, because it is divible by the number of its divisors (40).

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, 204557 + ... + 220563.

Almost surely, 2^3402447920 is an apocalyptic number.

It is an amenable number.

3402447920 is an abundant number, since it is smaller than the sum of its proper divisors (4511715184).

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

3402447920 is a wasteful number, since it uses less digits than its factorization.

3402447920 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18677 (or 18671 counting only the distinct ones).

The product of its (nonzero) digits is 48384, while the sum is 35.

The square root of 3402447920 is about 58330.5059124297. The cubic root of 3402447920 is about 1504.0553845419.

Adding to 3402447920 its reverse (297442043), we get a palindrome (3699889963).

The spelling of 3402447920 in words is "three billion, four hundred two million, four hundred forty-seven thousand, nine hundred twenty".