40144024 has 8 divisors (see below), whose sum is σ = 75270060. Its totient is φ = 20072008.

The previous prime is 40144019. The next prime is 40144031. The reversal of 40144024 is 42044104.

It is a tau number, because it is divible by the number of its divisors (8).

It is a super-2 number, since 2×40144024² = 3223085325825152, which contains 22 as substring.

It is a hoax number, since the sum of its digits (19) coincides with the sum of the digits of its distinct prime factors.

It is a junction number, because it is equal to n+sod(n) for n = 40143992 and 40144010.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2508994 + ... + 2509009.

Almost surely, 2^40144024 is an apocalyptic number.

It is an amenable number.

40144024 is a deficient number, since it is larger than the sum of its proper divisors (35126036).

40144024 is a wasteful number, since it uses less digits than its factorization.

40144024 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5018009 (or 5018005 counting only the distinct ones).

The product of its (nonzero) digits is 512, while the sum is 19.

The square root of 40144024 is about 6335.9311864950. The cubic root of 40144024 is about 342.4051603074.

Adding to 40144024 its reverse (42044104), we get a palindrome (82188128).

The spelling of 40144024 in words is "forty million, one hundred forty-four thousand, twenty-four".