146442330 has 40 divisors (see below), whose sum is σ = 393769332. Its totient is φ = 39051072.

The previous prime is 146442299. The next prime is 146442343. The reversal of 146442330 is 33244641.

146442330 is a `hidden beast` number, since 14 + 644 + 2 + 3 + 3 + 0 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 140493609 + 5948721 = 11853^2 + 2439^2 .

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a junction number, because it is equal to n+sod(n) for n = 146442294 and 146442303.

It is an unprimeable number.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 89587 + ... + 91206.

Almost surely, 2^146442330 is an apocalyptic number.

146442330 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

146442330 is an abundant number, since it is smaller than the sum of its proper divisors (247327002).

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

146442330 is a wasteful number, since it uses less digits than its factorization.

146442330 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 180812 (or 180803 counting only the distinct ones).

The product of its (nonzero) digits is 6912, while the sum is 27.

The square root of 146442330 is about 12101.3358766708. The cubic root of 146442330 is about 527.0949759632.

Adding to 146442330 its reverse (33244641), we get a palindrome (179686971).

The spelling of 146442330 in words is "one hundred forty-six million, four hundred forty-two thousand, three hundred thirty".