40252004 has 24 divisors (see below), whose sum is σ = 77913528. Its totient is φ = 18074880.

The previous prime is 40251989. The next prime is 40252019. The reversal of 40252004 is 40025204.

It is an interprime number because it is at equal distance from previous prime (40251989) and next prime (40252019).

It can be written as a sum of positive squares in 4 ways, for example, as 10549504 + 29702500 = 3248^2 + 5450^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 8537 + ... + 12384.

It is an arithmetic number, because the mean of its divisors is an integer number (3246397).

Almost surely, 2^40252004 is an apocalyptic number.

It is an amenable number.

40252004 is a deficient number, since it is larger than the sum of its proper divisors (37661524).

40252004 is a wasteful number, since it uses less digits than its factorization.

40252004 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20975 (or 20973 counting only the distinct ones).

The product of its (nonzero) digits is 320, while the sum is 17.

The square root of 40252004 is about 6344.4467055843. The cubic root of 40252004 is about 342.7118876430.

Adding to 40252004 its reverse (40025204), we get a palindrome (80277208).

It can be divided in two parts, 4025200 and 4, that added together give a palindrome (4025204).

The spelling of 40252004 in words is "forty million, two hundred fifty-two thousand, four".