424340146 has 4 divisors (see below), whose sum is σ = 636510222. Its totient is φ = 212170072.

The previous prime is 424340143. The next prime is 424340159. The reversal of 424340146 is 641043424.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 328515625 + 95824521 = 18125^2 + 9789^2 .

It is not an unprimeable number, because it can be changed into a prime (424340141) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 106085035 + ... + 106085038.

Almost surely, 2^424340146 is an apocalyptic number.

424340146 is a deficient number, since it is larger than the sum of its proper divisors (212170076).

424340146 is a wasteful number, since it uses less digits than its factorization.

424340146 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 212170075.

The product of its (nonzero) digits is 9216, while the sum is 28.

The square root of 424340146 is about 20599.5181011596. The cubic root of 424340146 is about 751.4579911052.

The spelling of 424340146 in words is "four hundred twenty-four million, three hundred forty thousand, one hundred forty-six".