3950520 has 64 divisors (see below), whose sum is σ = 13547520. Its totient is φ = 902784.

The previous prime is 3950509. The next prime is 3950533. The reversal of 3950520 is 250593.

It is a Harshad number since it is a multiple of its sum of digits (24).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1512 + ... + 3191.

It is an arithmetic number, because the mean of its divisors is an integer number (211680).

Almost surely, 2^3950520 is an apocalyptic number.

3950520 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is an amenable number.

3950520 is an abundant number, since it is smaller than the sum of its proper divisors (9597000).

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

3950520 is a wasteful number, since it uses less digits than its factorization.

3950520 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4724 (or 4720 counting only the distinct ones).

The product of its (nonzero) digits is 1350, while the sum is 24.

The square root of 3950520 is about 1987.5915073274. The cubic root of 3950520 is about 158.0828492482.

The spelling of 3950520 in words is "three million, nine hundred fifty thousand, five hundred twenty".