40990464 has 54 divisors (see below), whose sum is σ = 118192256. Its totient is φ = 13662720.

The previous prime is 40990457. The next prime is 40990483. The reversal of 40990464 is 46409904.

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

It is a congruent number.

It is an unprimeable number.

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, 6592 + ... + 11199.

Almost surely, 2^40990464 is an apocalyptic number.

It is an amenable number.

40990464 is an abundant number, since it is smaller than the sum of its proper divisors (77201792).

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

40990464 is a wasteful number, since it uses less digits than its factorization.

40990464 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17813 (or 17796 counting only the distinct ones).

The product of its (nonzero) digits is 31104, while the sum is 36.

The square root of 40990464 is about 6402.3795576332. The cubic root of 40990464 is about 344.7949884698.

The spelling of 40990464 in words is "forty million, nine hundred ninety thousand, four hundred sixty-four".