3455920 has 40 divisors (see below), whose sum is σ = 8655696. Its totient is φ = 1275648.

The previous prime is 3455909. The next prime is 3455923. The reversal of 3455920 is 295543.

3455920 = 313² + 314² + ... + 344².

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

It is a Smith number, since the sum of its digits (28) coincides with the sum of the digits of its prime factors.

It is not an unprimeable number, because it can be changed into a prime (3455923) 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, 622 + ... + 2701.

Almost surely, 2^3455920 is an apocalyptic number.

It is an amenable number.

3455920 is an abundant number, since it is smaller than the sum of its proper divisors (5199776).

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

3455920 is a wasteful number, since it uses less digits than its factorization.

3455920 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3349 (or 3343 counting only the distinct ones).

The product of its (nonzero) digits is 5400, while the sum is 28.

The square root of 3455920 is about 1859.0104894809. The cubic root of 3455920 is about 151.1893593848.

The spelling of 3455920 in words is "three million, four hundred fifty-five thousand, nine hundred twenty".