40465489 has 2 divisors, whose sum is σ = 40465490. Its totient is φ = 40465488.

The previous prime is 40465463. The next prime is 40465499. The reversal of 40465489 is 98456404.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 38031889 + 2433600 = 6167^2 + 1560^2 .

It is a cyclic number.

It is not a de Polignac number, because 40465489 - 2⁷ = 40465361 is a prime.

It is not a weakly prime, because it can be changed into another prime (40465409) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 20232744 + 20232745.

It is an arithmetic number, because the mean of its divisors is an integer number (20232745).

Almost surely, 2^40465489 is an apocalyptic number.

It is an amenable number.

40465489 is a deficient number, since it is larger than the sum of its proper divisors (1).

40465489 is an equidigital number, since it uses as much as digits as its factorization.

40465489 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 138240, while the sum is 40.

The square root of 40465489 is about 6361.2490125761. The cubic root of 40465489 is about 343.3167012607.

The spelling of 40465489 in words is "forty million, four hundred sixty-five thousand, four hundred eighty-nine".