40500432 has 160 divisors (see below), whose sum is σ = 135705600. Its totient is φ = 11325312.

The previous prime is 40500359. The next prime is 40500433. The reversal of 40500432 is 23400504.

It is a happy number.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40500433) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 178303 + ... + 178529.

It is an arithmetic number, because the mean of its divisors is an integer number (848160).

Almost surely, 2^40500432 is an apocalyptic number.

40500432 is a gapful number since it is divisible by the number (42) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 40500432, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (67852800).

40500432 is an abundant number, since it is smaller than the sum of its proper divisors (95205168).

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

40500432 is a wasteful number, since it uses less digits than its factorization.

40500432 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 310 (or 298 counting only the distinct ones).

The product of its (nonzero) digits is 480, while the sum is 18.

The square root of 40500432 is about 6363.9949717139. The cubic root of 40500432 is about 343.4154937902.

Adding to 40500432 its reverse (23400504), we get a palindrome (63900936).

The spelling of 40500432 in words is "forty million, five hundred thousand, four hundred thirty-two".