387860490 has 48 divisors (see below), whose sum is σ = 1061517600. Its totient is φ = 97985376.

The previous prime is 387860483. The next prime is 387860507. The reversal of 387860490 is 94068783.

It is a happy number.

387860490 is a `hidden beast` number, since 3 + 87 + 86 + 0 + 490 = 666.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 111700 + ... + 115119.

It is an arithmetic number, because the mean of its divisors is an integer number (22114950).

Almost surely, 2^387860490 is an apocalyptic number.

387860490 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

387860490 is an abundant number, since it is smaller than the sum of its proper divisors (673657110).

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

387860490 is a wasteful number, since it uses less digits than its factorization.

387860490 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 226851 (or 226848 counting only the distinct ones).

The product of its (nonzero) digits is 290304, while the sum is 45.

The square root of 387860490 is about 19694.1740116208. The cubic root of 387860490 is about 729.2758754233.

The spelling of 387860490 in words is "three hundred eighty-seven million, eight hundred sixty thousand, four hundred ninety".