40308724621 has 8 divisors (see below), whose sum is σ = 43974699264. Its totient is φ = 36643007520.

The previous prime is 40308724619. The next prime is 40308724639. The reversal of 40308724621 is 12642780304.

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 40308724621 - 2¹ = 40308724619 is a prime.

It is a super-2 number, since 2×40308724621² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40308724661) 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, 423945 + ... + 510241.

It is an arithmetic number, because the mean of its divisors is an integer number (5496837408).

Almost surely, 2^40308724621 is an apocalyptic number.

It is an amenable number.

40308724621 is a deficient number, since it is larger than the sum of its proper divisors (3665974643).

40308724621 is a wasteful number, since it uses less digits than its factorization.

40308724621 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 128771.

The product of its (nonzero) digits is 64512, while the sum is 37.

The spelling of 40308724621 in words is "forty billion, three hundred eight million, seven hundred twenty-four thousand, six hundred twenty-one".