38421028624 has 80 divisors (see below), whose sum is σ = 84841266240. Its totient is φ = 16694720000.

The previous prime is 38421028621. The next prime is 38421028627. The reversal of 38421028624 is 42682012483.

It is an interprime number because it is at equal distance from previous prime (38421028621) and next prime (38421028627).

It is not an unprimeable number, because it can be changed into a prime (38421028621) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 478239 + ... + 552769.

It is an arithmetic number, because the mean of its divisors is an integer number (1060515828).

Almost surely, 2^38421028624 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 38421028624, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (42420633120).

38421028624 is an abundant number, since it is smaller than the sum of its proper divisors (46420237616).

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

38421028624 is a wasteful number, since it uses less digits than its factorization.

38421028624 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 74680 (or 74674 counting only the distinct ones).

The product of its (nonzero) digits is 147456, while the sum is 40.

The spelling of 38421028624 in words is "thirty-eight billion, four hundred twenty-one million, twenty-eight thousand, six hundred twenty-four".