3934520 has 64 divisors (see below), whose sum is σ = 9676800. Its totient is φ = 1434240.

The previous prime is 3934519. The next prime is 3934523. The reversal of 3934520 is 254393.

It is a self number, because there is not a number n which added to its sum of digits gives 3934520.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3934523) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 23477 + ... + 23643.

It is an arithmetic number, because the mean of its divisors is an integer number (151200).

Almost surely, 2^3934520 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 3934520, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (4838400).

3934520 is an abundant number, since it is smaller than the sum of its proper divisors (5742280).

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

3934520 is a wasteful number, since it uses less digits than its factorization.

3934520 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 228 (or 224 counting only the distinct ones).

The product of its (nonzero) digits is 3240, while the sum is 26.

The square root of 3934520 is about 1983.5624517519. The cubic root of 3934520 is about 157.8691433761.

It can be divided in two parts, 393 and 4520, that added together give a cube (4913 = 17³).

The spelling of 3934520 in words is "three million, nine hundred thirty-four thousand, five hundred twenty".