147346728 has 32 divisors (see below), whose sum is σ = 378324960. Its totient is φ = 47787840.

The previous prime is 147346723. The next prime is 147346733. The reversal of 147346728 is 827643741.

It is an interprime number because it is at equal distance from previous prime (147346723) and next prime (147346733).

It is a super-2 number, since 2×147346728² = 43422116504611968, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 147346728.

It is not an unprimeable number, because it can be changed into a prime (147346721) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 82078 + ... + 83853.

It is an arithmetic number, because the mean of its divisors is an integer number (11822655).

Almost surely, 2^147346728 is an apocalyptic number.

It is an amenable number.

147346728 is an abundant number, since it is smaller than the sum of its proper divisors (230978232).

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

147346728 is a wasteful number, since it uses less digits than its factorization.

147346728 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 165977 (or 165973 counting only the distinct ones).

The product of its digits is 225792, while the sum is 42.

The square root of 147346728 is about 12138.6460529995. The cubic root of 147346728 is about 528.1778269251.

The spelling of 147346728 in words is "one hundred forty-seven million, three hundred forty-six thousand, seven hundred twenty-eight".