40001433232 has 20 divisors (see below), whose sum is σ = 77564867500. Its totient is φ = 19984693248.

The previous prime is 40001433223. The next prime is 40001433271. The reversal of 40001433232 is 23233410004.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 26567696016 + 13433737216 = 162996^2 + 115904^2 .

It is a super-2 number, since 2×40001433232² (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 3 ways as a sum of consecutive naturals, for example, 980853 + ... + 1020820.

It is an arithmetic number, because the mean of its divisors is an integer number (3878243375).

Almost surely, 2^40001433232 is an apocalyptic number.

It is an amenable number.

40001433232 is a deficient number, since it is larger than the sum of its proper divisors (37563434268).

40001433232 is a wasteful number, since it uses less digits than its factorization.

40001433232 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2002930 (or 2002924 counting only the distinct ones).

The product of its (nonzero) digits is 1728, while the sum is 22.

Adding to 40001433232 its reverse (23233410004), we get a palindrome (63234843236).

The spelling of 40001433232 in words is "forty billion, one million, four hundred thirty-three thousand, two hundred thirty-two".