227772345 has 16 divisors (see below), whose sum is σ = 376192512. Its totient is φ = 117559680.

The previous prime is 227772313. The next prime is 227772359. The reversal of 227772345 is 543277722.

It is not a de Polignac number, because 227772345 - 2⁵ = 227772313 is a prime.

It is a super-2 number, since 2×227772345² = 103760482293598050, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 244452 + ... + 245381.

It is an arithmetic number, because the mean of its divisors is an integer number (23512032).

Almost surely, 2^227772345 is an apocalyptic number.

It is an amenable number.

227772345 is a deficient number, since it is larger than the sum of its proper divisors (148420167).

227772345 is a wasteful number, since it uses less digits than its factorization.

227772345 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 489872.

The product of its digits is 164640, while the sum is 39.

The square root of 227772345 is about 15092.1285775069. The cubic root of 227772345 is about 610.7080776946.

The spelling of 227772345 in words is "two hundred twenty-seven million, seven hundred seventy-two thousand, three hundred forty-five".