4005954 has 12 divisors (see below), whose sum is σ = 8679606. Its totient is φ = 1335312.

The previous prime is 4005943. The next prime is 4005959. The reversal of 4005954 is 4595004.

It can be written as a sum of positive squares in only one way, i.e., 3697929 + 308025 = 1923^2 + 555^2 .

It is a Smith number, since the sum of its digits (27) coincides with the sum of the digits of its prime factors.

It is not an unprimeable number, because it can be changed into a prime (4005959) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 111259 + ... + 111294.

Almost surely, 2^4005954 is an apocalyptic number.

4005954 is an abundant number, since it is smaller than the sum of its proper divisors (4673652).

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

4005954 is a wasteful number, since it uses less digits than its factorization.

4005954 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 222561 (or 222558 counting only the distinct ones).

The product of its (nonzero) digits is 3600, while the sum is 27.

The square root of 4005954 is about 2001.4879465038. The cubic root of 4005954 is about 158.8188276991.

The spelling of 4005954 in words is "four million, five thousand, nine hundred fifty-four".