40080432 has 60 divisors (see below), whose sum is σ = 120452856. Its totient is φ = 11450880.

The previous prime is 40080409. The next prime is 40080449. The reversal of 40080432 is 23408004.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is a junction number, because it is equal to n+sod(n) for n = 40080399 and 40080408.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 6169 + ... + 10872.

Almost surely, 2^40080432 is an apocalyptic number.

40080432 is a gapful number since it is divisible by the number (42) formed by its first and last digit.

It is an amenable number.

40080432 is an abundant number, since it is smaller than the sum of its proper divisors (80372424).

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

40080432 is a wasteful number, since it uses less digits than its factorization.

40080432 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17066 (or 17053 counting only the distinct ones).

The product of its (nonzero) digits is 768, while the sum is 21.

The square root of 40080432 is about 6330.9108349431. The cubic root of 40080432 is about 342.2242638384.

Adding to 40080432 its reverse (23408004), we get a palindrome (63488436).

The spelling of 40080432 in words is "forty million, eighty thousand, four hundred thirty-two".