387012492 has 54 divisors (see below), whose sum is σ = 1016124564. Its totient is φ = 128799720.

The previous prime is 387012433. The next prime is 387012503. The reversal of 387012492 is 294210783.

It is a powerful number, because all its prime factors have an exponent greater than 1 and also an Achilles number because it is not a perfect power.

It is a tau number, because it is divible by the number of its divisors (54).

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

It is an unprimeable number.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 613017 + ... + 613647.

Almost surely, 2^387012492 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 387012492, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (508062282).

387012492 is an abundant number, since it is smaller than the sum of its proper divisors (629112072).

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

387012492 is an frugal number, since it uses more digits than its factorization.

387012492 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1281 (or 636 counting only the distinct ones).

The product of its (nonzero) digits is 24192, while the sum is 36.

The square root of 387012492 is about 19672.6330723673. The cubic root of 387012492 is about 728.7440040030.

The spelling of 387012492 in words is "three hundred eighty-seven million, twelve thousand, four hundred ninety-two".