40766431 has 8 divisors (see below), whose sum is σ = 42260400. Its totient is φ = 39278400.

The previous prime is 40766417. The next prime is 40766441. The reversal of 40766431 is 13466704.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 40766431 - 2⁷ = 40766303 is a prime.

It is a super-2 number, since 2×40766431² = 3323803792955522, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 40766393 and 40766402.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40766441) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 16260 + ... + 18598.

It is an arithmetic number, because the mean of its divisors is an integer number (5282550).

Almost surely, 2^40766431 is an apocalyptic number.

40766431 is a deficient number, since it is larger than the sum of its proper divisors (1493969).

40766431 is a wasteful number, since it uses less digits than its factorization.

40766431 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2969.

The product of its (nonzero) digits is 12096, while the sum is 31.

The square root of 40766431 is about 6384.8595129415. The cubic root of 40766431 is about 344.1656826502.

The spelling of 40766431 in words is "forty million, seven hundred sixty-six thousand, four hundred thirty-one".