40348621308 has 24 divisors (see below), whose sum is σ = 94833989712. Its totient is φ = 13351368064.

The previous prime is 40348621307. The next prime is 40348621319. The reversal of 40348621308 is 80312684304.

It is a happy number.

It is a super-2 number, since 2×40348621308² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40348621307) 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, 12269835 + ... + 12273122.

It is an arithmetic number, because the mean of its divisors is an integer number (3951416238).

Almost surely, 2^40348621308 is an apocalyptic number.

It is an amenable number.

40348621308 is an abundant number, since it is smaller than the sum of its proper divisors (54485368404).

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

40348621308 is a wasteful number, since it uses less digits than its factorization.

40348621308 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24543101 (or 24543099 counting only the distinct ones).

The product of its (nonzero) digits is 110592, while the sum is 39.

The spelling of 40348621308 in words is "forty billion, three hundred forty-eight million, six hundred twenty-one thousand, three hundred eight".