147243424 has 48 divisors (see below), whose sum is σ = 310722048. Its totient is φ = 68504832.

The previous prime is 147243391. The next prime is 147243463. The reversal of 147243424 is 424342741.

It is a super-2 number, since 2×147243424² = 43361251822487552, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 24529 + ... + 29935.

It is an arithmetic number, because the mean of its divisors is an integer number (6473376).

Almost surely, 2^147243424 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 147243424, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (155361024).

147243424 is an abundant number, since it is smaller than the sum of its proper divisors (163478624).

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

147243424 is a wasteful number, since it uses less digits than its factorization.

147243424 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5477 (or 5469 counting only the distinct ones).

The product of its digits is 21504, while the sum is 31.

The square root of 147243424 is about 12134.3901371268. The cubic root of 147243424 is about 528.0543638545.

The spelling of 147243424 in words is "one hundred forty-seven million, two hundred forty-three thousand, four hundred twenty-four".