442013357 has 2 divisors, whose sum is σ = 442013358. Its totient is φ = 442013356.

The previous prime is 442013353. The next prime is 442013371. The reversal of 442013357 is 753310244.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 349353481 + 92659876 = 18691^2 + 9626^2 .

It is a cyclic number.

It is not a de Polignac number, because 442013357 - 2² = 442013353 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (442013353) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 221006678 + 221006679.

It is an arithmetic number, because the mean of its divisors is an integer number (221006679).

Almost surely, 2^442013357 is an apocalyptic number.

It is an amenable number.

442013357 is a deficient number, since it is larger than the sum of its proper divisors (1).

442013357 is an equidigital number, since it uses as much as digits as its factorization.

442013357 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 10080, while the sum is 29.

The square root of 442013357 is about 21024.1137030791. The cubic root of 442013357 is about 761.7488333668.

The spelling of 442013357 in words is "four hundred forty-two million, thirteen thousand, three hundred fifty-seven".