40423032 has 96 divisors (see below), whose sum is σ = 124160400. Its totient is φ = 11778048.

The previous prime is 40423001. The next prime is 40423057. The reversal of 40423032 is 23032404.

40423032 is a `hidden beast` number, since 404 + 230 + 32 = 666.

40423032 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is a junction number, because it is equal to n+sod(n) for n = 40422996 and 40423014.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 16648 + ... + 18920.

Almost surely, 2^40423032 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 40423032, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (62080200).

40423032 is an abundant number, since it is smaller than the sum of its proper divisors (83737368).

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

40423032 is a wasteful number, since it uses less digits than its factorization.

40423032 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2317 (or 2310 counting only the distinct ones).

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

The square root of 40423032 is about 6357.9109776718. The cubic root of 40423032 is about 343.1965882263.

Adding to 40423032 its reverse (23032404), we get a palindrome (63455436).

It can be divided in two parts, 404 and 23032, that added together give a triangular number (23436 = T₂₁₆).

The spelling of 40423032 in words is "forty million, four hundred twenty-three thousand, thirty-two".