240353642 has 4 divisors (see below), whose sum is σ = 360530466. Its totient is φ = 120176820.

The previous prime is 240353623. The next prime is 240353647. The reversal of 240353642 is 246353042.

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., 238362721 + 1990921 = 15439^2 + 1411^2 .

It is not an unprimeable number, because it can be changed into a prime (240353647) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 60088409 + ... + 60088412.

Almost surely, 2^240353642 is an apocalyptic number.

240353642 is a deficient number, since it is larger than the sum of its proper divisors (120176824).

240353642 is a wasteful number, since it uses less digits than its factorization.

240353642 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 120176823.

The product of its (nonzero) digits is 17280, while the sum is 29.

The square root of 240353642 is about 15503.3429298329. The cubic root of 240353642 is about 621.7515869238.

The spelling of 240353642 in words is "two hundred forty million, three hundred fifty-three thousand, six hundred forty-two".