38502730 has 24 divisors (see below), whose sum is σ = 80621028. Its totient is φ = 13200768.

The previous prime is 38502703. The next prime is 38502781. The reversal of 38502730 is 3720583.

It can be written as a sum of positive squares in 2 ways, for example, as 37687321 + 815409 = 6139^2 + 903^2 .

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, 38799 + ... + 39778.

Almost surely, 2^38502730 is an apocalyptic number.

38502730 is an abundant number, since it is smaller than the sum of its proper divisors (42118298).

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

38502730 is a wasteful number, since it uses less digits than its factorization.

38502730 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 78598 (or 78591 counting only the distinct ones).

The product of its (nonzero) digits is 5040, while the sum is 28.

The square root of 38502730 is about 6205.0568087649. The cubic root of 38502730 is about 337.6736518346.

The spelling of 38502730 in words is "thirty-eight million, five hundred two thousand, seven hundred thirty".