40134732 has 72 divisors (see below), whose sum is σ = 104212416. Its totient is φ = 12012000.

The previous prime is 40134719. The next prime is 40134749. The reversal of 40134732 is 23743104.

It is a super-2 number, since 2×40134732² = 3221593425423648, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 190107 + ... + 190317.

Almost surely, 2^40134732 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 40134732, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (52106208).

40134732 is an abundant number, since it is smaller than the sum of its proper divisors (64077684).

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

40134732 is a wasteful number, since it uses less digits than its factorization.

40134732 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 371 (or 358 counting only the distinct ones).

The product of its (nonzero) digits is 2016, while the sum is 24.

The square root of 40134732 is about 6335.1978658918. The cubic root of 40134732 is about 342.3787398182.

Adding to 40134732 its reverse (23743104), we get a palindrome (63877836).

The spelling of 40134732 in words is "forty million, one hundred thirty-four thousand, seven hundred thirty-two".