387023478 has 32 divisors (see below), whose sum is σ = 813474816. Its totient is φ = 122599008.

The previous prime is 387023471. The next prime is 387023489. The reversal of 387023478 is 874320783.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (387023471) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 10726 + ... + 29817.

It is an arithmetic number, because the mean of its divisors is an integer number (25421088).

Almost surely, 2^387023478 is an apocalyptic number.

387023478 is an abundant number, since it is smaller than the sum of its proper divisors (426451338).

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

387023478 is a wasteful number, since it uses less digits than its factorization.

387023478 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 40628.

The product of its (nonzero) digits is 225792, while the sum is 42.

The square root of 387023478 is about 19672.9122907616. The cubic root of 387023478 is about 728.7508994788.

The spelling of 387023478 in words is "three hundred eighty-seven million, twenty-three thousand, four hundred seventy-eight".