4013870 has 32 divisors (see below), whose sum is σ = 8745408. Its totient is φ = 1294848.

The previous prime is 4013857. The next prime is 4013881. The reversal of 4013870 is 783104.

It is a happy number.

It is a super-2 number, since 2×4013870² = 32222304753800, which contains 22 as substring.

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, 497 + ... + 2876.

It is an arithmetic number, because the mean of its divisors is an integer number (273294).

Almost surely, 2^4013870 is an apocalyptic number.

4013870 is an abundant number, since it is smaller than the sum of its proper divisors (4731538).

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

4013870 is a wasteful number, since it uses less digits than its factorization.

4013870 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3404.

The product of its (nonzero) digits is 672, while the sum is 23.

The square root of 4013870 is about 2003.4644993111. The cubic root of 4013870 is about 158.9233706404.

Adding to 4013870 its reverse (783104), we get a palindrome (4796974).

The spelling of 4013870 in words is "four million, thirteen thousand, eight hundred seventy".