146287422 has 48 divisors (see below), whose sum is σ = 334685520. Its totient is φ = 46051200.

The previous prime is 146287411. The next prime is 146287423. The reversal of 146287422 is 224782641.

146287422 is a `hidden beast` number, since 1 + 4 + 628 + 7 + 4 + 22 = 666.

146287422 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (146287423) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 177772 + ... + 178592.

It is an arithmetic number, because the mean of its divisors is an integer number (6972615).

Almost surely, 2^146287422 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 146287422, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (167342760).

146287422 is an abundant number, since it is smaller than the sum of its proper divisors (188398098).

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

146287422 is a wasteful number, since it uses less digits than its factorization.

146287422 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1369 (or 1366 counting only the distinct ones).

The product of its digits is 43008, while the sum is 36.

The square root of 146287422 is about 12094.9337327660. The cubic root of 146287422 is about 526.9090551393.

The spelling of 146287422 in words is "one hundred forty-six million, two hundred eighty-seven thousand, four hundred twenty-two".