40143032 has 8 divisors (see below), whose sum is σ = 75268200. Its totient is φ = 20071512.

The previous prime is 40143017. The next prime is 40143041. The reversal of 40143032 is 23034104.

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

It is a super-2 number, since 2×40143032² = 3222926036306048, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 40143032.

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, 2508932 + ... + 2508947.

It is an arithmetic number, because the mean of its divisors is an integer number (9408525).

Almost surely, 2^40143032 is an apocalyptic number.

It is an amenable number.

40143032 is a deficient number, since it is larger than the sum of its proper divisors (35125168).

40143032 is a wasteful number, since it uses less digits than its factorization.

40143032 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5017885 (or 5017881 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 17.

The square root of 40143032 is about 6335.8529023329. The cubic root of 40143032 is about 342.4023398900.

Adding to 40143032 its reverse (23034104), we get a palindrome (63177136).

The spelling of 40143032 in words is "forty million, one hundred forty-three thousand, thirty-two".