222731434 has 8 divisors (see below), whose sum is σ = 342245988. Its totient is φ = 108649440.

The previous prime is 222731429. The next prime is 222731437. The reversal of 222731434 is 434137222.

222731434 is digitally balanced in base 2 and base 3, because in such bases it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 222099409 + 632025 = 14903^2 + 795^2 .

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

It is not an unprimeable number, because it can be changed into a prime (222731437) 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, 1358037 + ... + 1358200.

Almost surely, 2^222731434 is an apocalyptic number.

222731434 is a deficient number, since it is larger than the sum of its proper divisors (119514554).

222731434 is a wasteful number, since it uses less digits than its factorization.

222731434 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2716280.

The product of its digits is 8064, while the sum is 28.

The square root of 222731434 is about 14924.1895592357. The cubic root of 222731434 is about 606.1691609504.

Adding to 222731434 its reverse (434137222), we get a palindrome (656868656).

The spelling of 222731434 in words is "two hundred twenty-two million, seven hundred thirty-one thousand, four hundred thirty-four".