387493090 has 32 divisors (see below), whose sum is σ = 704816640. Its totient is φ = 153378624.

The previous prime is 387493063. The next prime is 387493103. The reversal of 387493090 is 90394783.

It is a super-3 number, since 3×387493090³ (a number of 27 digits) contains 333 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 470419 + ... + 471241.

It is an arithmetic number, because the mean of its divisors is an integer number (22025520).

Almost surely, 2^387493090 is an apocalyptic number.

387493090 is a deficient number, since it is larger than the sum of its proper divisors (317323550).

387493090 is a wasteful number, since it uses less digits than its factorization.

387493090 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1266.

The product of its (nonzero) digits is 163296, while the sum is 43.

The square root of 387493090 is about 19684.8441700716. The cubic root of 387493090 is about 729.0455343525.

The spelling of 387493090 in words is "three hundred eighty-seven million, four hundred ninety-three thousand, ninety".