38231780 has 12 divisors (see below), whose sum is σ = 80286780. Its totient is φ = 15292704.

The previous prime is 38231777. The next prime is 38231797. The reversal of 38231780 is 8713283.

It can be written as a sum of positive squares in 2 ways, for example, as 15555136 + 22676644 = 3944^2 + 4762^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 955775 + ... + 955814.

It is an arithmetic number, because the mean of its divisors is an integer number (6690565).

Almost surely, 2^38231780 is an apocalyptic number.

It is an amenable number.

38231780 is an abundant number, since it is smaller than the sum of its proper divisors (42055000).

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

38231780 is a wasteful number, since it uses less digits than its factorization.

38231780 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1911598 (or 1911596 counting only the distinct ones).

The product of its (nonzero) digits is 8064, while the sum is 32.

The square root of 38231780 is about 6183.1852632765. The cubic root of 38231780 is about 336.8796983040.

The spelling of 38231780 in words is "thirty-eight million, two hundred thirty-one thousand, seven hundred eighty".