38647723400 has 384 divisors, whose sum is σ = 112920272640. Its totient is φ = 12097536000.

The previous prime is 38647723399. The next prime is 38647723421. The reversal of 38647723400 is 432774683.

It is a Harshad number since it is a multiple of its sum of digits (44).

It is an unprimeable number.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 26969084 + ... + 26970516.

It is an arithmetic number, because the mean of its divisors is an integer number (294063210).

Almost surely, 2^38647723400 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 38647723400, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (56460136320).

38647723400 is an abundant number, since it is smaller than the sum of its proper divisors (74272549240).

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

38647723400 is a wasteful number, since it uses less digits than its factorization.

38647723400 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1537 (or 1528 counting only the distinct ones).

The product of its (nonzero) digits is 677376, while the sum is 44.

The spelling of 38647723400 in words is "thirty-eight billion, six hundred forty-seven million, seven hundred twenty-three thousand, four hundred".