40902201 has 6 divisors (see below), whose sum is σ = 59080970. Its totient is φ = 27268128.

The previous prime is 40902179. The next prime is 40902229. The reversal of 40902201 is 10220904.

It can be written as a sum of positive squares in only one way, i.e., 39690000 + 1212201 = 6300^2 + 1101^2 .

It is not a de Polignac number, because 40902201 - 2⁶ = 40902137 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (40902601) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 2272336 + ... + 2272353.

Almost surely, 2^40902201 is an apocalyptic number.

It is an amenable number.

40902201 is a deficient number, since it is larger than the sum of its proper divisors (18178769).

40902201 is a wasteful number, since it uses less digits than its factorization.

40902201 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4544695 (or 4544692 counting only the distinct ones).

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

The square root of 40902201 is about 6395.4828590185. The cubic root of 40902201 is about 344.5473332320.

The spelling of 40902201 in words is "forty million, nine hundred two thousand, two hundred one".