40621610 has 8 divisors (see below), whose sum is σ = 73118916. Its totient is φ = 16248640.

The previous prime is 40621577. The next prime is 40621613. The reversal of 40621610 is 1612604.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 37075921 + 3545689 = 6089^2 + 1883^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is not an unprimeable number, because it can be changed into a prime (40621613) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2031071 + ... + 2031090.

Almost surely, 2^40621610 is an apocalyptic number.

40621610 is a deficient number, since it is larger than the sum of its proper divisors (32497306).

40621610 is a wasteful number, since it uses less digits than its factorization.

40621610 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4062168.

The product of its (nonzero) digits is 288, while the sum is 20.

The square root of 40621610 is about 6373.5084529637. The cubic root of 40621610 is about 343.7576544852.

The spelling of 40621610 in words is "forty million, six hundred twenty-one thousand, six hundred ten".