422743731 has 8 divisors (see below), whose sum is σ = 563841984. Its totient is φ = 281737320.

The previous prime is 422743729. The next prime is 422743733. The reversal of 422743731 is 137347224.

It is an interprime number because it is at equal distance from previous prime (422743729) and next prime (422743733).

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

It is not a de Polignac number, because 422743731 - 2¹ = 422743729 is a prime.

It is a super-2 number, since 2×422743731² = 357424524199600722, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 422743692 and 422743701.

It is not an unprimeable number, because it can be changed into a prime (422743733) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 11385 + ... + 31226.

It is an arithmetic number, because the mean of its divisors is an integer number (70480248).

Almost surely, 2^422743731 is an apocalyptic number.

422743731 is a deficient number, since it is larger than the sum of its proper divisors (141098253).

422743731 is a wasteful number, since it uses less digits than its factorization.

422743731 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 45921.

The product of its digits is 28224, while the sum is 33.

The square root of 422743731 is about 20560.7327447248. The cubic root of 422743731 is about 750.5144505957.

The spelling of 422743731 in words is "four hundred twenty-two million, seven hundred forty-three thousand, seven hundred thirty-one".