40809464 has 16 divisors (see below), whose sum is σ = 76917120. Its totient is φ = 20298240.

The previous prime is 40809463. The next prime is 40809487. The reversal of 40809464 is 46490804.

It is a Smith number, since the sum of its digits (35) coincides with the sum of the digits of its prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40809463) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 11672 + ... + 14759.

It is an arithmetic number, because the mean of its divisors is an integer number (4807320).

Almost surely, 2^40809464 is an apocalyptic number.

It is an amenable number.

40809464 is a deficient number, since it is larger than the sum of its proper divisors (36107656).

40809464 is a wasteful number, since it uses less digits than its factorization.

40809464 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26630 (or 26626 counting only the distinct ones).

The product of its (nonzero) digits is 27648, while the sum is 35.

The square root of 40809464 is about 6388.2285494494. The cubic root of 40809464 is about 344.2867403702.

The spelling of 40809464 in words is "forty million, eight hundred nine thousand, four hundred sixty-four".