146220424 has 32 divisors (see below), whose sum is σ = 314928000. Its totient is φ = 62346240.

The previous prime is 146220421. The next prime is 146220443. The reversal of 146220424 is 424022641.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (146220421) 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, 4584 + ... + 17704.

It is an arithmetic number, because the mean of its divisors is an integer number (9841500).

Almost surely, 2^146220424 is an apocalyptic number.

146220424 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

It is an amenable number.

146220424 is an abundant number, since it is smaller than the sum of its proper divisors (168707576).

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

146220424 is a wasteful number, since it uses less digits than its factorization.

146220424 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13333 (or 13329 counting only the distinct ones).

The product of its (nonzero) digits is 3072, while the sum is 25.

The square root of 146220424 is about 12092.1637435159. The cubic root of 146220424 is about 526.8286033751.

The spelling of 146220424 in words is "one hundred forty-six million, two hundred twenty thousand, four hundred twenty-four".