3455720 has 32 divisors (see below), whose sum is σ = 8186400. Its totient is φ = 1309248.

The previous prime is 3455719. The next prime is 3455723. The reversal of 3455720 is 275543.

It is a self number, because there is not a number n which added to its sum of digits gives 3455720.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3455723) 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, 1514 + ... + 3033.

It is an arithmetic number, because the mean of its divisors is an integer number (255825).

Almost surely, 2^3455720 is an apocalyptic number.

It is an amenable number.

3455720 is an abundant number, since it is smaller than the sum of its proper divisors (4730680).

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

3455720 is a wasteful number, since it uses less digits than its factorization.

3455720 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4577 (or 4573 counting only the distinct ones).

The product of its (nonzero) digits is 4200, while the sum is 26.

The square root of 3455720 is about 1858.9566966447. The cubic root of 3455720 is about 151.1864427996.

The spelling of 3455720 in words is "three million, four hundred fifty-five thousand, seven hundred twenty".