387150840 has 240 divisors, whose sum is σ = 1377497880. Its totient is φ = 97511040.

The previous prime is 387150833. The next prime is 387150851. The reversal of 387150840 is 48051783.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a junction number, because it is equal to n+sod(n) for n = 387150795 and 387150804.

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 59 ways as a sum of consecutive naturals, for example, 1169475 + ... + 1169805.

Almost surely, 2^387150840 is an apocalyptic number.

387150840 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 387150840, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (688748940).

387150840 is an abundant number, since it is smaller than the sum of its proper divisors (990347040).

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

387150840 is a wasteful number, since it uses less digits than its factorization.

387150840 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 392 (or 360 counting only the distinct ones).

The product of its (nonzero) digits is 26880, while the sum is 36.

The square root of 387150840 is about 19676.1490134630. The cubic root of 387150840 is about 728.8308300239.

The spelling of 387150840 in words is "three hundred eighty-seven million, one hundred fifty thousand, eight hundred forty".