442695397 has 4 divisors (see below), whose sum is σ = 452114496. Its totient is φ = 433276300.

The previous prime is 442695391. The next prime is 442695403. The reversal of 442695397 is 793596244.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is an interprime number because it is at equal distance from previous prime (442695391) and next prime (442695403).

It is a cyclic number.

It is not a de Polignac number, because 442695397 - 2³ = 442695389 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 442695397.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (442695391) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4709479 + ... + 4709572.

It is an arithmetic number, because the mean of its divisors is an integer number (113028624).

Almost surely, 2^442695397 is an apocalyptic number.

442695397 is a gapful number since it is divisible by the number (47) formed by its first and last digit.

It is an amenable number.

442695397 is a deficient number, since it is larger than the sum of its proper divisors (9419099).

442695397 is an equidigital number, since it uses as much as digits as its factorization.

442695397 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9419098.

The product of its digits is 1632960, while the sum is 49.

The square root of 442695397 is about 21040.3278729206. The cubic root of 442695397 is about 762.1404325280.

The spelling of 442695397 in words is "four hundred forty-two million, six hundred ninety-five thousand, three hundred ninety-seven".