40973431 has 2 divisors, whose sum is σ = 40973432. Its totient is φ = 40973430.

The previous prime is 40973411. The next prime is 40973483. The reversal of 40973431 is 13437904.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 40973431 - 2¹¹ = 40971383 is a prime.

It is a super-2 number, since 2×40973431² = 3357644095823522, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 40973393 and 40973402.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (40973411) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 20486715 + 20486716.

It is an arithmetic number, because the mean of its divisors is an integer number (20486716).

Almost surely, 2^40973431 is an apocalyptic number.

40973431 is a deficient number, since it is larger than the sum of its proper divisors (1).

40973431 is an equidigital number, since it uses as much as digits as its factorization.

40973431 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 9072, while the sum is 31.

The square root of 40973431 is about 6401.0492108716. The cubic root of 40973431 is about 344.7472236474.

The spelling of 40973431 in words is "forty million, nine hundred seventy-three thousand, four hundred thirty-one".