144642346 has 32 divisors (see below), whose sum is σ = 227106000. Its totient is φ = 69050880.

The previous prime is 144642319. The next prime is 144642367. The reversal of 144642346 is 643246441.

It can be written as a sum of positive squares in 8 ways, for example, as 21986721 + 122655625 = 4689^2 + 11075^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 970680 + ... + 970828.

Almost surely, 2^144642346 is an apocalyptic number.

144642346 is a deficient number, since it is larger than the sum of its proper divisors (82463654).

144642346 is a wasteful number, since it uses less digits than its factorization.

144642346 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 394.

The product of its digits is 55296, while the sum is 34.

The square root of 144642346 is about 12026.7346358020. The cubic root of 144642346 is about 524.9264852468.

Adding to 144642346 its reverse (643246441), we get a palindrome (787888787).

The spelling of 144642346 in words is "one hundred forty-four million, six hundred forty-two thousand, three hundred forty-six".