40918464 has 42 divisors (see below), whose sum is σ = 117287040. Its totient is φ = 13639296.

The previous prime is 40918463. The next prime is 40918469. The reversal of 40918464 is 46481904.

It is a happy number.

It is a super-2 number, since 2×40918464² = 3348641392238592, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40918463) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 34944 + ... + 36095.

Almost surely, 2^40918464 is an apocalyptic number.

It is an amenable number.

40918464 is an abundant number, since it is smaller than the sum of its proper divisors (76368576).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

40918464 is a wasteful number, since it uses less digits than its factorization.

40918464 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 71057 (or 71044 counting only the distinct ones).

The product of its (nonzero) digits is 27648, while the sum is 36.

The square root of 40918464 is about 6396.7541769244. The cubic root of 40918464 is about 344.5929919876.

The spelling of 40918464 in words is "forty million, nine hundred eighteen thousand, four hundred sixty-four".