40040620621 has 8 divisors (see below), whose sum is σ = 40551082880. Its totient is φ = 39530248992.

The previous prime is 40040620619. The next prime is 40040620639. The reversal of 40040620621 is 12602604004.

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

It is a cyclic number.

It is not a de Polignac number, because 40040620621 - 2¹ = 40040620619 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40040620661) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1602601 + ... + 1627393.

It is an arithmetic number, because the mean of its divisors is an integer number (5068885360).

Almost surely, 2^40040620621 is an apocalyptic number.

It is an amenable number.

40040620621 is a deficient number, since it is larger than the sum of its proper divisors (510462259).

40040620621 is a wasteful number, since it uses less digits than its factorization.

40040620621 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 45315.

The product of its (nonzero) digits is 2304, while the sum is 25.

The spelling of 40040620621 in words is "forty billion, forty million, six hundred twenty thousand, six hundred twenty-one".