40144542532 has 24 divisors (see below), whose sum is σ = 73167917760. Its totient is φ = 19254705120.

The previous prime is 40144542517. The next prime is 40144542589. The reversal of 40144542532 is 23524544104.

It is a super-2 number, since 2×40144542532² (a number of 22 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1899682 + ... + 1920697.

It is an arithmetic number, because the mean of its divisors is an integer number (3048663240).

Almost surely, 2^40144542532 is an apocalyptic number.

It is an amenable number.

40144542532 is a deficient number, since it is larger than the sum of its proper divisors (33023375228).

40144542532 is a wasteful number, since it uses less digits than its factorization.

40144542532 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3820491 (or 3820489 counting only the distinct ones).

The product of its (nonzero) digits is 76800, while the sum is 34.

The spelling of 40144542532 in words is "forty billion, one hundred forty-four million, five hundred forty-two thousand, five hundred thirty-two".