40201902 has 24 divisors (see below), whose sum is σ = 93804984. Its totient is φ = 12369744.

The previous prime is 40201879. The next prime is 40201919. The reversal of 40201902 is 20910204.

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 polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 85668 + ... + 86135.

It is an arithmetic number, because the mean of its divisors is an integer number (3908541).

Almost surely, 2^40201902 is an apocalyptic number.

40201902 is an abundant number, since it is smaller than the sum of its proper divisors (53603082).

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

40201902 is a wasteful number, since it uses less digits than its factorization.

40201902 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 171824 (or 171821 counting only the distinct ones).

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

The square root of 40201902 is about 6340.4969836756. The cubic root of 40201902 is about 342.5696365058.

The spelling of 40201902 in words is "forty million, two hundred one thousand, nine hundred two".