40404024 has 48 divisors (see below), whose sum is σ = 112104720. Its totient is φ = 13138560.

The previous prime is 40404017. The next prime is 40404043. The reversal of 40404024 is 42040404.

It is a happy number.

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 = 40403988 and 40404006.

It is a congruent number.

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, 3892 + ... + 9795.

It is an arithmetic number, because the mean of its divisors is an integer number (2335515).

Almost surely, 2^40404024 is an apocalyptic number.

It is an amenable number.

40404024 is an abundant number, since it is smaller than the sum of its proper divisors (71700696).

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

40404024 is a wasteful number, since it uses less digits than its factorization.

40404024 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13740 (or 13733 counting only the distinct ones).

The product of its (nonzero) digits is 512, while the sum is 18.

The square root of 40404024 is about 6356.4159712844. The cubic root of 40404024 is about 343.1427863614.

Adding to 40404024 its reverse (42040404), we get a palindrome (82444428).

The spelling of 40404024 in words is "forty million, four hundred four thousand, twenty-four".