38493816 has 48 divisors (see below), whose sum is σ = 99498600. Its totient is φ = 12409920.

The previous prime is 38493803. The next prime is 38493821. The reversal of 38493816 is 61839483.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 22230 + ... + 23898.

Almost surely, 2^38493816 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 38493816, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (49749300).

38493816 is an abundant number, since it is smaller than the sum of its proper divisors (61004784).

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

38493816 is a wasteful number, since it uses less digits than its factorization.

38493816 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1740 (or 1705 counting only the distinct ones).

The product of its digits is 124416, while the sum is 42.

The square root of 38493816 is about 6204.3384820624. The cubic root of 38493816 is about 337.6475908666.

The spelling of 38493816 in words is "thirty-eight million, four hundred ninety-three thousand, eight hundred sixteen".