387845045 has 24 divisors (see below), whose sum is σ = 542269728. Its totient is φ = 265524000.

The previous prime is 387845011. The next prime is 387845047. The reversal of 387845045 is 540548783.

It is not a de Polignac number, because 387845045 - 2¹⁰ = 387844021 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 387844987 and 387845005.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (387845047) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 266570 + ... + 268020.

It is an arithmetic number, because the mean of its divisors is an integer number (22594572).

Almost surely, 2^387845045 is an apocalyptic number.

387845045 is a gapful number since it is divisible by the number (35) formed by its first and last digit.

It is an amenable number.

387845045 is a deficient number, since it is larger than the sum of its proper divisors (154424683).

387845045 is a wasteful number, since it uses less digits than its factorization.

387845045 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2561 (or 2554 counting only the distinct ones).

The product of its (nonzero) digits is 537600, while the sum is 44.

The square root of 387845045 is about 19693.7818866768. The cubic root of 387845045 is about 729.2661951252.

The spelling of 387845045 in words is "three hundred eighty-seven million, eight hundred forty-five thousand, forty-five".