40010620 has 24 divisors (see below), whose sum is σ = 90486144. Its totient is φ = 14773056.

The previous prime is 40010611. The next prime is 40010623. The reversal of 40010620 is 2601004.

It is a Harshad number since it is a multiple of its sum of digits (13).

It is a self number, because there is not a number n which added to its sum of digits gives 40010620.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40010623) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 76684 + ... + 77203.

It is an arithmetic number, because the mean of its divisors is an integer number (3770256).

Almost surely, 2^40010620 is an apocalyptic number.

It is an amenable number.

40010620 is an abundant number, since it is smaller than the sum of its proper divisors (50475524).

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

40010620 is a wasteful number, since it uses less digits than its factorization.

40010620 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 153909 (or 153907 counting only the distinct ones).

The product of its (nonzero) digits is 48, while the sum is 13.

The square root of 40010620 is about 6325.3948493355. The cubic root of 40010620 is about 342.0254532314.

Adding to 40010620 its reverse (2601004), we get a palindrome (42611624).

The spelling of 40010620 in words is "forty million, ten thousand, six hundred twenty".