147748728 has 64 divisors (see below), whose sum is σ = 386795520. Its totient is φ = 46972800.

The previous prime is 147748721. The next prime is 147748787. The reversal of 147748728 is 827847741.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (147748721) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 51426 + ... + 54222.

It is an arithmetic number, because the mean of its divisors is an integer number (6043680).

Almost surely, 2^147748728 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 147748728, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (193397760).

147748728 is an abundant number, since it is smaller than the sum of its proper divisors (239046792).

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

147748728 is a wasteful number, since it uses less digits than its factorization.

147748728 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2908 (or 2904 counting only the distinct ones).

The product of its digits is 702464, while the sum is 48.

The square root of 147748728 is about 12155.1934579422. The cubic root of 147748728 is about 528.6577260191.

It can be divided in two parts, 1477 and 48728, that added together give a palindrome (50205).

The spelling of 147748728 in words is "one hundred forty-seven million, seven hundred forty-eight thousand, seven hundred twenty-eight".