1228144258 has 48 divisors (see below), whose sum is σ = 2133462240. Its totient is φ = 525526400.

The previous prime is 1228144223. The next prime is 1228144259. The reversal of 1228144258 is 8524418221.

It is a hoax number, since the sum of its digits (37) coincides with the sum of the digits of its distinct prime factors.

It is not an unprimeable number, because it can be changed into a prime (1228144259) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 757773 + ... + 759391.

It is an arithmetic number, because the mean of its divisors is an integer number (44447130).

Almost surely, 2^1228144258 is an apocalyptic number.

1228144258 is a deficient number, since it is larger than the sum of its proper divisors (905317982).

1228144258 is a wasteful number, since it uses less digits than its factorization.

1228144258 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1731 (or 1702 counting only the distinct ones).

The product of its digits is 40960, while the sum is 37.

The square root of 1228144258 is about 35044.8891851579. The cubic root of 1228144258 is about 1070.9021587555.

The spelling of 1228144258 in words is "one billion, two hundred twenty-eight million, one hundred forty-four thousand, two hundred fifty-eight".