38692499440 has 80 divisors (see below), whose sum is σ = 103103275968. Its totient is φ = 13228351488.

The previous prime is 38692499429. The next prime is 38692499453. The reversal of 38692499440 is 4499429683.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (80).

It is a congruent number.

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, 99814 + ... + 295546.

Almost surely, 2^38692499440 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 38692499440, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (51551637984).

38692499440 is an abundant number, since it is smaller than the sum of its proper divisors (64410776528).

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

38692499440 is a wasteful number, since it uses less digits than its factorization.

38692499440 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 196106 (or 196100 counting only the distinct ones).

The product of its (nonzero) digits is 13436928, while the sum is 58.

The spelling of 38692499440 in words is "thirty-eight billion, six hundred ninety-two million, four hundred ninety-nine thousand, four hundred forty".