42214457 has 2 divisors, whose sum is σ = 42214458. Its totient is φ = 42214456.

The previous prime is 42214423. The next prime is 42214463. The reversal of 42214457 is 75441224.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 39488656 + 2725801 = 6284^2 + 1651^2 .

It is a cyclic number.

It is not a de Polignac number, because 42214457 - 2¹⁴ = 42198073 is a prime.

It is not a weakly prime, because it can be changed into another prime (42214477) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 21107228 + 21107229.

It is an arithmetic number, because the mean of its divisors is an integer number (21107229).

Almost surely, 2^42214457 is an apocalyptic number.

It is an amenable number.

42214457 is a deficient number, since it is larger than the sum of its proper divisors (1).

42214457 is an equidigital number, since it uses as much as digits as its factorization.

42214457 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 8960, while the sum is 29.

The square root of 42214457 is about 6497.2653478213. The cubic root of 42214457 is about 348.1932938805.

The spelling of 42214457 in words is "forty-two million, two hundred fourteen thousand, four hundred fifty-seven".