40304832 has 56 divisors (see below), whose sum is σ = 111288576. Its totient is φ = 12849408.

The previous prime is 40304801. The next prime is 40304837. The reversal of 40304832 is 23840304.

It is a Harshad number since it is a multiple of its sum of digits (24).

It is not an unprimeable number, because it can be changed into a prime (40304837) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 148 + ... + 8979.

It is an arithmetic number, because the mean of its divisors is an integer number (1987296).

Almost surely, 2^40304832 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 40304832, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (55644288).

40304832 is an abundant number, since it is smaller than the sum of its proper divisors (70983744).

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

40304832 is a wasteful number, since it uses less digits than its factorization.

40304832 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9165 (or 9155 counting only the distinct ones).

The product of its (nonzero) digits is 2304, while the sum is 24.

The square root of 40304832 is about 6348.6086664717. The cubic root of 40304832 is about 342.8617507317.

The spelling of 40304832 in words is "forty million, three hundred four thousand, eight hundred thirty-two".