40432319 has 2 divisors, whose sum is σ = 40432320. Its totient is φ = 40432318.

The previous prime is 40432309. The next prime is 40432333. The reversal of 40432319 is 91323404.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 40432319 - 2⁴ = 40432303 is a prime.

It is a super-2 number, since 2×40432319² = 3269544839435522, which contains 22 as substring.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (40432309) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 20216159 + 20216160.

It is an arithmetic number, because the mean of its divisors is an integer number (20216160).

Almost surely, 2^40432319 is an apocalyptic number.

40432319 is a deficient number, since it is larger than the sum of its proper divisors (1).

40432319 is an equidigital number, since it uses as much as digits as its factorization.

40432319 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2592, while the sum is 26.

The square root of 40432319 is about 6358.6412856836. The cubic root of 40432319 is about 343.2228688103. Note that the first 3 decimals are identical.

It can be divided in two parts, 404 and 32319, that added together give a palindrome (32723).

The spelling of 40432319 in words is "forty million, four hundred thirty-two thousand, three hundred nineteen".