147704472 has 80 divisors (see below), whose sum is σ = 417914640. Its totient is φ = 48734784.

The previous prime is 147704443. The next prime is 147704539. The reversal of 147704472 is 274407741.

147704472 is a `hidden beast` number, since 147 + 70 + 447 + 2 = 666.

It is a super-2 number, since 2×147704472² = 43633222097597568, which contains 22 as substring.

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

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 65638 + ... + 67850.

It is an arithmetic number, because the mean of its divisors is an integer number (5223933).

Almost surely, 2^147704472 is an apocalyptic number.

147704472 is a gapful number since it is divisible by the number (12) 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 147704472, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (208957320).

147704472 is an abundant number, since it is smaller than the sum of its proper divisors (270210168).

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

147704472 is a wasteful number, since it uses less digits than its factorization.

147704472 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2334 (or 2321 counting only the distinct ones).

The product of its (nonzero) digits is 43904, while the sum is 36.

The square root of 147704472 is about 12153.3728651762. The cubic root of 147704472 is about 528.6049368162.

The spelling of 147704472 in words is "one hundred forty-seven million, seven hundred four thousand, four hundred seventy-two".