4015994 has 16 divisors (see below), whose sum is σ = 6171648. Its totient is φ = 1959552.

The previous prime is 4015993. The next prime is 4016003. The reversal of 4015994 is 4995104.

It is a super-2 number, since 2×4015994² = 32256415616072, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 4015994.

It is not an unprimeable number, because it can be changed into a prime (4015993) 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, 24557 + ... + 24719.

It is an arithmetic number, because the mean of its divisors is an integer number (385728).

Almost surely, 2^4015994 is an apocalyptic number.

4015994 is a deficient number, since it is larger than the sum of its proper divisors (2155654).

4015994 is a wasteful number, since it uses less digits than its factorization.

4015994 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 389.

The product of its (nonzero) digits is 6480, while the sum is 32.

The square root of 4015994 is about 2003.9945109705. The cubic root of 4015994 is about 158.9513979321.

The spelling of 4015994 in words is "four million, fifteen thousand, nine hundred ninety-four".