40621032 has 48 divisors (see below), whose sum is σ = 110518980. Its totient is φ = 13478400.

The previous prime is 40620997. The next prime is 40621033. The reversal of 40621032 is 23012604.

It is a happy number.

40621032 is a `hidden beast` number, since 40 + 621 + 0 + 3 + 2 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 38862756 + 1758276 = 6234^2 + 1326^2 .

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a junction number, because it is equal to n+sod(n) for n = 40620996 and 40621014.

It is not an unprimeable number, because it can be changed into a prime (40621033) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 16182 + ... + 18522.

Almost surely, 2^40621032 is an apocalyptic number.

It is an amenable number.

40621032 is an abundant number, since it is smaller than the sum of its proper divisors (69897948).

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

40621032 is a wasteful number, since it uses less digits than its factorization.

40621032 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2594 (or 2587 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 18.

The square root of 40621032 is about 6373.4631088600. The cubic root of 40621032 is about 343.7560240487.

Adding to 40621032 its reverse (23012604), we get a palindrome (63633636).

The spelling of 40621032 in words is "forty million, six hundred twenty-one thousand, thirty-two".