227401999 has 4 divisors (see below), whose sum is σ = 248074920. Its totient is φ = 206729080.

The previous prime is 227401981. The next prime is 227402003. The reversal of 227401999 is 999104722.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 227401999 - 2¹³ = 227393807 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (227401099) 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, 10336444 + ... + 10336465.

It is an arithmetic number, because the mean of its divisors is an integer number (62018730).

Almost surely, 2^227401999 is an apocalyptic number.

227401999 is a deficient number, since it is larger than the sum of its proper divisors (20672921).

227401999 is a wasteful number, since it uses less digits than its factorization.

227401999 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20672920.

The product of its (nonzero) digits is 81648, while the sum is 43.

The square root of 227401999 is about 15079.8540775433. The cubic root of 227401999 is about 610.3769049373.

The spelling of 227401999 in words is "two hundred twenty-seven million, four hundred one thousand, nine hundred ninety-nine".