40432901 has 4 divisors (see below), whose sum is σ = 40473600. Its totient is φ = 40392204.

The previous prime is 40432891. The next prime is 40432933. The reversal of 40432901 is 10923404.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 40432901 - 2¹⁰ = 40431877 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40432961) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 18821 + ... + 20858.

It is an arithmetic number, because the mean of its divisors is an integer number (10118400).

Almost surely, 2^40432901 is an apocalyptic number.

It is an amenable number.

40432901 is a deficient number, since it is larger than the sum of its proper divisors (40699).

40432901 is a wasteful number, since it uses less digits than its factorization.

40432901 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 40698.

The product of its (nonzero) digits is 864, while the sum is 23.

The square root of 40432901 is about 6358.6870500128. The cubic root of 40432901 is about 343.2245156344.

The spelling of 40432901 in words is "forty million, four hundred thirty-two thousand, nine hundred one".