442353457 has 16 divisors (see below), whose sum is σ = 568108800. Its totient is φ = 334775232.

The previous prime is 442353451. The next prime is 442353467. The reversal of 442353457 is 754353244.

It is a cyclic number.

It is not a de Polignac number, because 442353457 - 2¹⁵ = 442320689 is a prime.

It is not an unprimeable number, because it can be changed into a prime (442353451) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 103582 + ... + 107767.

It is an arithmetic number, because the mean of its divisors is an integer number (35506800).

Almost surely, 2^442353457 is an apocalyptic number.

It is an amenable number.

442353457 is a deficient number, since it is larger than the sum of its proper divisors (125755343).

442353457 is a wasteful number, since it uses less digits than its factorization.

442353457 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 211392.

The product of its digits is 201600, while the sum is 37.

The square root of 442353457 is about 21032.2004792651. The cubic root of 442353457 is about 761.9441550364.

The spelling of 442353457 in words is "four hundred forty-two million, three hundred fifty-three thousand, four hundred fifty-seven".