3940032 has 28 divisors (see below), whose sum is σ = 10425176. Its totient is φ = 1313280.

The previous prime is 3940021. The next prime is 3940033. The reversal of 3940032 is 2300493.

It is a super-2 number, since 2×3940032² = 31047704322048, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 3939990 and 3940008.

It is not an unprimeable number, because it can be changed into a prime (3940033) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 10069 + ... + 10452.

Almost surely, 2^3940032 is an apocalyptic number.

3940032 is a gapful number since it is divisible by the number (32) formed by its first and last digit.

It is an amenable number.

3940032 is an abundant number, since it is smaller than the sum of its proper divisors (6485144).

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

3940032 is a wasteful number, since it uses less digits than its factorization.

3940032 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20536 (or 20526 counting only the distinct ones).

The product of its (nonzero) digits is 648, while the sum is 21.

The square root of 3940032 is about 1984.9513847951. The cubic root of 3940032 is about 157.9428303554.

The spelling of 3940032 in words is "three million, nine hundred forty thousand, thirty-two".