40012902 has 48 divisors (see below), whose sum is σ = 88957440. Its totient is φ = 12994800.

The previous prime is 40012897. The next prime is 40012913. The reversal of 40012902 is 20921004.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a congruent number.

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 23 ways as a sum of consecutive naturals, for example, 167299 + ... + 167537.

It is an arithmetic number, because the mean of its divisors is an integer number (1853280).

Almost surely, 2^40012902 is an apocalyptic number.

40012902 is an abundant number, since it is smaller than the sum of its proper divisors (48944538).

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

40012902 is a wasteful number, since it uses less digits than its factorization.

40012902 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 449 (or 446 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 18.

The square root of 40012902 is about 6325.5752307597. The cubic root of 40012902 is about 342.0319555654.

Adding to 40012902 its reverse (20921004), we get a palindrome (60933906).

It can be divided in two parts, 4001 and 2902, that added together give a triangular number (6903 = T₁₁₇).

The spelling of 40012902 in words is "forty million, twelve thousand, nine hundred two".