146639338 has 8 divisors (see below), whose sum is σ = 220080420. Its totient is φ = 73279200.

The previous prime is 146639333. The next prime is 146639351. The reversal of 146639338 is 833936641.

It can be written as a sum of positive squares in 2 ways, for example, as 142730809 + 3908529 = 11947^2 + 1977^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a junction number, because it is equal to n+sod(n) for n = 146639294 and 146639303.

It is not an unprimeable number, because it can be changed into a prime (146639333) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 15483 + ... + 23086.

Almost surely, 2^146639338 is an apocalyptic number.

146639338 is a deficient number, since it is larger than the sum of its proper divisors (73441082).

146639338 is a wasteful number, since it uses less digits than its factorization.

146639338 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 40472.

The product of its digits is 279936, while the sum is 43.

The square root of 146639338 is about 12109.4730686352. The cubic root of 146639338 is about 527.3312359658.

It can be divided in two parts, 1466 and 39338, that added together give a palindrome (40804).

The spelling of 146639338 in words is "one hundred forty-six million, six hundred thirty-nine thousand, three hundred thirty-eight".