385149780 has 72 divisors (see below), whose sum is σ = 1170484224. Its totient is φ = 102513600.

The previous prime is 385149707. The next prime is 385149799. The reversal of 385149780 is 87941583.

385149780 is a `hidden beast` number, since 3 + 85 + 1 + 497 + 80 = 666.

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

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 111885 + ... + 115275.

Almost surely, 2^385149780 is an apocalyptic number.

385149780 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is an amenable number.

385149780 is an abundant number, since it is smaller than the sum of its proper divisors (785334444).

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

385149780 is a wasteful number, since it uses less digits than its factorization.

385149780 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4037 (or 4032 counting only the distinct ones).

The product of its (nonzero) digits is 241920, while the sum is 45.

The square root of 385149780 is about 19625.2332470215. The cubic root of 385149780 is about 727.5729618253.

The spelling of 385149780 in words is "three hundred eighty-five million, one hundred forty-nine thousand, seven hundred eighty".