40293504 has 128 divisors (see below), whose sum is σ = 121176000. Its totient is φ = 13178880.

The previous prime is 40293467. The next prime is 40293527. The reversal of 40293504 is 40539204.

It is a tau number, because it is divible by the number of its divisors (128).

It is a hoax number, since the sum of its digits (27) coincides with the sum of the digits of its distinct prime factors.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 307519 + ... + 307649.

Almost surely, 2^40293504 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 40293504, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (60588000).

40293504 is an abundant number, since it is smaller than the sum of its proper divisors (80882496).

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

40293504 is a wasteful number, since it uses less digits than its factorization.

40293504 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 243 (or 225 counting only the distinct ones).

The product of its (nonzero) digits is 4320, while the sum is 27.

The square root of 40293504 is about 6347.7164397916. The cubic root of 40293504 is about 342.8296263631.

The spelling of 40293504 in words is "forty million, two hundred ninety-three thousand, five hundred four".