147681444 has 48 divisors (see below), whose sum is σ = 349272000. Its totient is φ = 48564096.

The previous prime is 147681437. The next prime is 147681449. The reversal of 147681444 is 444186741.

It is not an unprimeable number, because it can be changed into a prime (147681449) 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, 422982 + ... + 423330.

It is an arithmetic number, because the mean of its divisors is an integer number (7276500).

Almost surely, 2^147681444 is an apocalyptic number.

It is an amenable number.

147681444 is an abundant number, since it is smaller than the sum of its proper divisors (201590556).

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

147681444 is a wasteful number, since it uses less digits than its factorization.

147681444 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 732 (or 730 counting only the distinct ones).

The product of its digits is 86016, while the sum is 39.

The square root of 147681444 is about 12152.4254369241. The cubic root of 147681444 is about 528.5774645107.

The spelling of 147681444 in words is "one hundred forty-seven million, six hundred eighty-one thousand, four hundred forty-four".