40230432 has 240 divisors, whose sum is σ = 138311712. Its totient is φ = 11335680.

The previous prime is 40230419. The next prime is 40230451. The reversal of 40230432 is 23403204.

40230432 is a `hidden beast` number, since 4 + 0 + 230 + 432 = 666.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is an unprimeable number.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 484663 + ... + 484745.

Almost surely, 2^40230432 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 40230432, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (69155856).

40230432 is an abundant number, since it is smaller than the sum of its proper divisors (98081280).

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

40230432 is a wasteful number, since it uses less digits than its factorization.

40230432 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 133 (or 116 counting only the distinct ones).

The product of its (nonzero) digits is 576, while the sum is 18.

The square root of 40230432 is about 6342.7464082998. The cubic root of 40230432 is about 342.6506542369.

Adding to 40230432 its reverse (23403204), we get a palindrome (63633636).

The spelling of 40230432 in words is "forty million, two hundred thirty thousand, four hundred thirty-two".