422742049 has 4 divisors (see below), whose sum is σ = 422784900. Its totient is φ = 422699200.

The previous prime is 422742041. The next prime is 422742059. The reversal of 422742049 is 940247224.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It can be written as a sum of positive squares in 2 ways, for example, as 385140625 + 37601424 = 19625^2 + 6132^2 .

It is a cyclic number.

It is not a de Polignac number, because 422742049 - 2³ = 422742041 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (422742041) 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, 1677 + ... + 29125.

It is an arithmetic number, because the mean of its divisors is an integer number (105696225).

Almost surely, 2^422742049 is an apocalyptic number.

It is an amenable number.

422742049 is a deficient number, since it is larger than the sum of its proper divisors (42851).

422742049 is a wasteful number, since it uses less digits than its factorization.

422742049 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 42850.

The product of its (nonzero) digits is 32256, while the sum is 34.

The square root of 422742049 is about 20560.6918414727. The cubic root of 422742049 is about 750.5134552196.

The spelling of 422742049 in words is "four hundred twenty-two million, seven hundred forty-two thousand, forty-nine".