40432953 has 16 divisors (see below), whose sum is σ = 62271936. Its totient is φ = 23063040.

The previous prime is 40432939. The next prime is 40432957. The reversal of 40432953 is 35923404.

It is not a de Polignac number, because 40432953 - 2¹⁷ = 40301881 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 40432953.

It is not an unprimeable number, because it can be changed into a prime (40432957) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 35476 + ... + 36597.

It is an arithmetic number, because the mean of its divisors is an integer number (3891996).

Almost surely, 2^40432953 is an apocalyptic number.

It is an amenable number.

40432953 is a deficient number, since it is larger than the sum of its proper divisors (21838983).

40432953 is a wasteful number, since it uses less digits than its factorization.

40432953 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 72104.

The product of its (nonzero) digits is 12960, while the sum is 30.

The square root of 40432953 is about 6358.6911389059. The cubic root of 40432953 is about 343.2246627725.

It can be divided in two parts, 4043 and 2953, that added together give a palindrome (6996).

The spelling of 40432953 in words is "forty million, four hundred thirty-two thousand, nine hundred fifty-three".