40003332 has 12 divisors (see below), whose sum is σ = 93341136. Its totient is φ = 13334440.

The previous prime is 40003319. The next prime is 40003387. The reversal of 40003332 is 23330004.

It is a tau number, because it is divible by the number of its divisors (12).

It is a super-2 number, since 2×40003332² = 3200533142204448, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1666794 + ... + 1666817.

It is an arithmetic number, because the mean of its divisors is an integer number (7778428).

Almost surely, 2^40003332 is an apocalyptic number.

It is an amenable number.

40003332 is an abundant number, since it is smaller than the sum of its proper divisors (53337804).

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

40003332 is a wasteful number, since it uses less digits than its factorization.

40003332 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3333618 (or 3333616 counting only the distinct ones).

The product of its (nonzero) digits is 216, while the sum is 15.

The square root of 40003332 is about 6324.8187325804. The cubic root of 40003332 is about 342.0046851381.

Adding to 40003332 its reverse (23330004), we get a palindrome (63333336).

It can be divided in two parts, 400033 and 32, that added together give a triangular number (400065 = T₈₉₄).

The spelling of 40003332 in words is "forty million, three thousand, three hundred thirty-two".