422472730 has 8 divisors (see below), whose sum is σ = 760450932. Its totient is φ = 168989088.

The previous prime is 422472727. The next prime is 422472737. The reversal of 422472730 is 37274224.

It can be written as a sum of positive squares in 2 ways, for example, as 350850361 + 71622369 = 18731^2 + 8463^2 .

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

It is a junction number, because it is equal to n+sod(n) for n = 422472692 and 422472701.

It is not an unprimeable number, because it can be changed into a prime (422472737) 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, 21123627 + ... + 21123646.

Almost surely, 2^422472730 is an apocalyptic number.

422472730 is a deficient number, since it is larger than the sum of its proper divisors (337978202).

422472730 is a wasteful number, since it uses less digits than its factorization.

422472730 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 42247280.

The product of its (nonzero) digits is 18816, while the sum is 31.

The square root of 422472730 is about 20554.1414318380. The cubic root of 422472730 is about 750.3540432153.

The spelling of 422472730 in words is "four hundred twenty-two million, four hundred seventy-two thousand, seven hundred thirty".