422752261 has 8 divisors (see below), whose sum is σ = 445221920. Its totient is φ = 400304592.

The previous prime is 422752241. The next prime is 422752279. The reversal of 422752261 is 162257224.

422752261 = 4708² + 4709² + ... + 4726².

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-422752261 is a prime.

It is a super-2 number, since 2×422752261² = 357438948361224242, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (422752241) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 46831 + ... + 55123.

It is an arithmetic number, because the mean of its divisors is an integer number (55652740).

Almost surely, 2^422752261 is an apocalyptic number.

It is an amenable number.

422752261 is a deficient number, since it is larger than the sum of its proper divisors (22469659).

422752261 is a wasteful number, since it uses less digits than its factorization.

422752261 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10995.

The product of its digits is 13440, while the sum is 31.

The square root of 422752261 is about 20560.9401779199. The cubic root of 422752261 is about 750.5194984491.

The spelling of 422752261 in words is "four hundred twenty-two million, seven hundred fifty-two thousand, two hundred sixty-one".