3994120 has 32 divisors (see below), whose sum is σ = 9679320. Its totient is φ = 1474560.

The previous prime is 3994103. The next prime is 3994121. The reversal of 3994120 is 214993.

3994120 = 509² + 510² + ... + 523².

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 2883204 + 1110916 = 1698^2 + 1054^2 .

It is not an unprimeable number, because it can be changed into a prime (3994121) 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, 3321 + ... + 4360.

Almost surely, 2^3994120 is an apocalyptic number.

It is an amenable number.

3994120 is an abundant number, since it is smaller than the sum of its proper divisors (5685200).

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

3994120 is a wasteful number, since it uses less digits than its factorization.

3994120 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7705 (or 7701 counting only the distinct ones).

The product of its (nonzero) digits is 1944, while the sum is 28.

The square root of 3994120 is about 1998.5294593776. The cubic root of 3994120 is about 158.6622844006.

It can be divided in two parts, 3994 and 120, that added together give a palindrome (4114).

The spelling of 3994120 in words is "three million, nine hundred ninety-four thousand, one hundred twenty".