147987840 has 576 divisors, whose sum is σ = 649540080. Its totient is φ = 28385280.

The previous prime is 147987809. The next prime is 147987857. The reversal of 147987840 is 48789741.

It is a Harshad number since it is a multiple of its sum of digits (48).

It is a self number, because there is not a number n which added to its sum of digits gives 147987840.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 71 ways as a sum of consecutive naturals, for example, 11383674 + ... + 11383686.

Almost surely, 2^147987840 is an apocalyptic number.

147987840 is a gapful number since it is divisible by the number (10) 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 147987840, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (324770040).

147987840 is an abundant number, since it is smaller than the sum of its proper divisors (501552240).

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

147987840 is a wasteful number, since it uses less digits than its factorization.

147987840 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 71 (or 41 counting only the distinct ones).

The product of its (nonzero) digits is 451584, while the sum is 48.

The square root of 147987840 is about 12165.0252774090. The cubic root of 147987840 is about 528.9427601156.

The spelling of 147987840 in words is "one hundred forty-seven million, nine hundred eighty-seven thousand, eight hundred forty".