40637532 has 48 divisors (see below), whose sum is σ = 102553472. Its totient is φ = 12450240.

The previous prime is 40637503. The next prime is 40637551. The reversal of 40637532 is 23573604.

It is a self number, because there is not a number n which added to its sum of digits gives 40637532.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 51243 + ... + 52029.

Almost surely, 2^40637532 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 40637532, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (51276736).

40637532 is an abundant number, since it is smaller than the sum of its proper divisors (61915940).

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

40637532 is a wasteful number, since it uses less digits than its factorization.

40637532 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1138 (or 1136 counting only the distinct ones).

The product of its (nonzero) digits is 15120, while the sum is 30.

The square root of 40637532 is about 6374.7574071489. The cubic root of 40637532 is about 343.8025615714.

The spelling of 40637532 in words is "forty million, six hundred thirty-seven thousand, five hundred thirty-two".