387914670 has 320 divisors, whose sum is σ = 1304081856. Its totient is φ = 81285120.

The previous prime is 387914669. The next prime is 387914671. The reversal of 387914670 is 76419783.

It is an interprime number because it is at equal distance from previous prime (387914669) and next prime (387914671).

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (387914671) by changing a digit.

It is a polite number, since it can be written in 159 ways as a sum of consecutive naturals, for example, 1969012 + ... + 1969208.

Almost surely, 2^387914670 is an apocalyptic number.

387914670 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 387914670, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (652040928).

387914670 is an abundant number, since it is smaller than the sum of its proper divisors (916167186).

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

387914670 is a wasteful number, since it uses less digits than its factorization.

387914670 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 257 (or 248 counting only the distinct ones).

The product of its (nonzero) digits is 254016, while the sum is 45.

The square root of 387914670 is about 19695.5494972849. The cubic root of 387914670 is about 729.3098312126.

The spelling of 387914670 in words is "three hundred eighty-seven million, nine hundred fourteen thousand, six hundred seventy".