40202004 has 24 divisors (see below), whose sum is σ = 97040160. Its totient is φ = 12938464.

The previous prime is 40202003. The next prime is 40202021. The reversal of 40202004 is 40020204.

40202004 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×40202004² = 3232402251232032, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (12).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40202003) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 57414 + ... + 58109.

It is an arithmetic number, because the mean of its divisors is an integer number (4043340).

Almost surely, 2^40202004 is an apocalyptic number.

It is an amenable number.

40202004 is an abundant number, since it is smaller than the sum of its proper divisors (56838156).

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

40202004 is a wasteful number, since it uses less digits than its factorization.

40202004 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 115559 (or 115557 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 12.

The square root of 40202004 is about 6340.5050272041. The cubic root of 40202004 is about 342.5699262273.

Adding to 40202004 its reverse (40020204), we get a palindrome (80222208).

It can be divided in two parts, 4020200 and 4, that added together give a palindrome (4020204).

The spelling of 40202004 in words is "forty million, two hundred two thousand, four".