442070957 has 2 divisors, whose sum is σ = 442070958. Its totient is φ = 442070956.

The previous prime is 442070947. The next prime is 442070977. The reversal of 442070957 is 759070244.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 323064676 + 119006281 = 17974^2 + 10909^2 .

It is a cyclic number.

It is not a de Polignac number, because 442070957 - 2¹⁰ = 442069933 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 442070957.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (442070947) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 221035478 + 221035479.

It is an arithmetic number, because the mean of its divisors is an integer number (221035479).

Almost surely, 2^442070957 is an apocalyptic number.

It is an amenable number.

442070957 is a deficient number, since it is larger than the sum of its proper divisors (1).

442070957 is an equidigital number, since it uses as much as digits as its factorization.

442070957 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 70560, while the sum is 38.

The square root of 442070957 is about 21025.4835140598. The cubic root of 442070957 is about 761.7819204718.

The spelling of 442070957 in words is "four hundred forty-two million, seventy thousand, nine hundred fifty-seven".