38465644 has 48 divisors (see below), whose sum is σ = 79978752. Its totient is φ = 15844032.

The previous prime is 38465621. The next prime is 38465657. The reversal of 38465644 is 44656483.

It is a junction number, because it is equal to n+sod(n) for n = 38465597 and 38465606.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 110679 + ... + 111025.

It is an arithmetic number, because the mean of its divisors is an integer number (1666224).

Almost surely, 2^38465644 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 38465644, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (39989376).

38465644 is an abundant number, since it is smaller than the sum of its proper divisors (41513108).

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

38465644 is a wasteful number, since it uses less digits than its factorization.

38465644 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 502 (or 500 counting only the distinct ones).

The product of its digits is 276480, while the sum is 40.

The square root of 38465644 is about 6202.0677197206. The cubic root of 38465644 is about 337.5652007548.

The spelling of 38465644 in words is "thirty-eight million, four hundred sixty-five thousand, six hundred forty-four".