38485830 has 64 divisors (see below), whose sum is σ = 97977600. Its totient is φ = 9648000.

The previous prime is 38485801. The next prime is 38485873. The reversal of 38485830 is 3858483.

It is a super-2 number, since 2×38485830² = 2962318221577800, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 142936 + ... + 143204.

It is an arithmetic number, because the mean of its divisors is an integer number (1530900).

Almost surely, 2^38485830 is an apocalyptic number.

38485830 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 38485830, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (48988800).

38485830 is an abundant number, since it is smaller than the sum of its proper divisors (59491770).

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

38485830 is a wasteful number, since it uses less digits than its factorization.

38485830 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 549.

The product of its (nonzero) digits is 92160, while the sum is 39.

The square root of 38485830 is about 6203.6948667709. The cubic root of 38485830 is about 337.6242395820.

The spelling of 38485830 in words is "thirty-eight million, four hundred eighty-five thousand, eight hundred thirty".