442156245 has 32 divisors (see below), whose sum is σ = 716241792. Its totient is φ = 232906752.

The previous prime is 442156223. The next prime is 442156291. The reversal of 442156245 is 542651244.

It is not a de Polignac number, because 442156245 - 2¹⁰ = 442155221 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 471417 + ... + 472353.

It is an arithmetic number, because the mean of its divisors is an integer number (22382556).

Almost surely, 2^442156245 is an apocalyptic number.

It is an amenable number.

442156245 is a deficient number, since it is larger than the sum of its proper divisors (274085547).

442156245 is a wasteful number, since it uses less digits than its factorization.

442156245 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1301.

The product of its digits is 38400, while the sum is 33.

The square root of 442156245 is about 21027.5116216827. The cubic root of 442156245 is about 761.8309070863.

The spelling of 442156245 in words is "four hundred forty-two million, one hundred fifty-six thousand, two hundred forty-five".