3490400 has 36 divisors (see below), whose sum is σ = 8522892. Its totient is φ = 1395840.

The previous prime is 3490393. The next prime is 3490427. The reversal of 3490400 is 40943.

It is a Harshad number since it is a multiple of its sum of digits (20).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1382 + ... + 2981.

It is an arithmetic number, because the mean of its divisors is an integer number (236747).

Almost surely, 2^3490400 is an apocalyptic number.

It is an amenable number.

3490400 is an abundant number, since it is smaller than the sum of its proper divisors (5032492).

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

3490400 is a wasteful number, since it uses less digits than its factorization.

3490400 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4383 (or 4370 counting only the distinct ones).

The product of its (nonzero) digits is 432, while the sum is 20.

The square root of 3490400 is about 1868.2612237051. The cubic root of 3490400 is about 151.6905059871.

The spelling of 3490400 in words is "three million, four hundred ninety thousand, four hundred".