40202901 has 6 divisors (see below), whose sum is σ = 58070870. Its totient is φ = 26801928.

The previous prime is 40202887. The next prime is 40202927. The reversal of 40202901 is 10920204.

40202901 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in only one way, i.e., 33074001 + 7128900 = 5751^2 + 2670^2 .

It is not a de Polignac number, because 40202901 - 2¹⁰ = 40201877 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40202941) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 2233486 + ... + 2233503.

Almost surely, 2^40202901 is an apocalyptic number.

It is an amenable number.

40202901 is a deficient number, since it is larger than the sum of its proper divisors (17867969).

40202901 is a wasteful number, since it uses less digits than its factorization.

40202901 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4466995 (or 4466992 counting only the distinct ones).

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

The square root of 40202901 is about 6340.5757624998. The cubic root of 40202901 is about 342.5724740517.

The spelling of 40202901 in words is "forty million, two hundred two thousand, nine hundred one".