40724430 has 32 divisors (see below), whose sum is σ = 98073504. Its totient is φ = 10822656.

The previous prime is 40724413. The next prime is 40724443. The reversal of 40724430 is 3442704.

It is a self number, because there is not a number n which added to its sum of digits gives 40724430.

It is a congruent number.

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, 7222 + ... + 11558.

It is an arithmetic number, because the mean of its divisors is an integer number (3064797).

Almost surely, 2^40724430 is an apocalyptic number.

40724430 is an abundant number, since it is smaller than the sum of its proper divisors (57349074).

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

40724430 is a wasteful number, since it uses less digits than its factorization.

40724430 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4660.

The product of its (nonzero) digits is 2688, while the sum is 24.

The square root of 40724430 is about 6381.5695561515. The cubic root of 40724430 is about 344.0474459075.

The spelling of 40724430 in words is "forty million, seven hundred twenty-four thousand, four hundred thirty".