1298237226 has 64 divisors (see below), whose sum is σ = 3108067200. Its totient is φ = 356279040.

The previous prime is 1298237221. The next prime is 1298237261. The reversal of 1298237226 is 6227328921.

It is not an unprimeable number, because it can be changed into a prime (1298237221) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 31200 + ... + 59748.

It is an arithmetic number, because the mean of its divisors is an integer number (48563550).

Almost surely, 2^1298237226 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1298237226, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1554033600).

1298237226 is an abundant number, since it is smaller than the sum of its proper divisors (1809829974).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1298237226 is a wasteful number, since it uses less digits than its factorization.

1298237226 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28631.

The product of its digits is 145152, while the sum is 42.

The square root of 1298237226 is about 36031.0591850975. The cubic root of 1298237226 is about 1090.8993576164.

The spelling of 1298237226 in words is "one billion, two hundred ninety-eight million, two hundred thirty-seven thousand, two hundred twenty-six".