38723892 has 24 divisors (see below), whose sum is σ = 95671296. Its totient is φ = 12148608.

The previous prime is 38723891. The next prime is 38723917. The reversal of 38723892 is 29832783.

It is an alternating number because its digits alternate between odd and even.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (38723891) 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, 94708 + ... + 95115.

It is an arithmetic number, because the mean of its divisors is an integer number (3986304).

Almost surely, 2^38723892 is an apocalyptic number.

It is an amenable number.

38723892 is an abundant number, since it is smaller than the sum of its proper divisors (56947404).

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

38723892 is a wasteful number, since it uses less digits than its factorization.

38723892 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 189847 (or 189845 counting only the distinct ones).

The product of its digits is 145152, while the sum is 42.

The square root of 38723892 is about 6222.8524006279. The cubic root of 38723892 is about 338.3189571141.

The spelling of 38723892 in words is "thirty-eight million, seven hundred twenty-three thousand, eight hundred ninety-two".