90002012 has 24 divisors (see below), whose sum is σ = 175548240. Its totient is φ = 40124160.

The previous prime is 90001999. The next prime is 90002041. The reversal of 90002012 is 21020009.

90002012 is digitally balanced in base 9, because in such base it contains all the possibile digits an equal number of times.

90002012 is strictly pandigital in base 9.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 33539 + ... + 36122.

It is an arithmetic number, because the mean of its divisors is an integer number (7314510).

Almost surely, 2^90002012 is an apocalyptic number.

It is an amenable number.

90002012 is a deficient number, since it is larger than the sum of its proper divisors (85546228).

90002012 is a wasteful number, since it uses less digits than its factorization.

90002012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 69701 (or 69699 counting only the distinct ones).

The product of its (nonzero) digits is 36, while the sum is 14.

The square root of 90002012 is about 9486.9390216234. The cubic root of 90002012 is about 448.1438141073.

The spelling of 90002012 in words is "ninety million, two thousand, twelve".