40246631 has 2 divisors, whose sum is σ = 40246632. Its totient is φ = 40246630.

The previous prime is 40246603. The next prime is 40246691. The reversal of 40246631 is 13664204.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 40246631 - 2⁶ = 40246567 is a prime.

It is a super-2 number, since 2×40246631² = 3239582613700322, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 40246631.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (40246691) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 20123315 + 20123316.

It is an arithmetic number, because the mean of its divisors is an integer number (20123316).

Almost surely, 2^40246631 is an apocalyptic number.

40246631 is a deficient number, since it is larger than the sum of its proper divisors (1).

40246631 is an equidigital number, since it uses as much as digits as its factorization.

40246631 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 3456, while the sum is 26.

The square root of 40246631 is about 6344.0232502727. The cubic root of 40246631 is about 342.6966381090.

The spelling of 40246631 in words is "forty million, two hundred forty-six thousand, six hundred thirty-one".