146989722 has 32 divisors (see below), whose sum is σ = 323559360. Its totient is φ = 44145920.

The previous prime is 146989721. The next prime is 146989741. The reversal of 146989722 is 227989641.

It is not an unprimeable number, because it can be changed into a prime (146989721) 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, 2397 + ... + 17312.

It is an arithmetic number, because the mean of its divisors is an integer number (10111230).

Almost surely, 2^146989722 is an apocalyptic number.

146989722 is an abundant number, since it is smaller than the sum of its proper divisors (176569638).

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

146989722 is a wasteful number, since it uses less digits than its factorization.

146989722 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19838.

The product of its digits is 435456, while the sum is 48.

The square root of 146989722 is about 12123.9317879968. The cubic root of 146989722 is about 527.7509083898.

The spelling of 146989722 in words is "one hundred forty-six million, nine hundred eighty-nine thousand, seven hundred twenty-two".