1226474296369 has 9 divisors (see below), whose sum is σ = 1426724015787. Its totient is φ = 1051257037824.

The previous prime is 1226474296363. The next prime is 1226474296387. The reversal of 1226474296369 is 9636924746221.

The square root of 1226474296369 is 1107463.

It is a perfect power (a square), and thus also a powerful number.

It can be written as a sum of positive squares in only one way, i.e., 158972056369 + 1067502240000 = 398713^2 + 1033200^2 .

It is not a de Polignac number, because 1226474296369 - 2⁵ = 1226474296337 is a prime.

It is a super-2 number, since 2×1226474296369² (a number of 25 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (1226474296363) by changing a digit.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 7673137 + ... + 7831345.

It is an arithmetic number, because the mean of its divisors is an integer number (158524890643).

Almost surely, 2^{1226474296369} is an apocalyptic number.

1226474296369 is the 1107463-rd square number.

1226474296369 is the 553732-nd centered octagonal number.

It is an amenable number.

1226474296369 is a deficient number, since it is larger than the sum of its proper divisors (200249719418).

1226474296369 is an frugal number, since it uses more digits than its factorization.

1226474296369 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 316432 (or 158216 counting only the distinct ones).

The product of its digits is 47029248, while the sum is 61.

The spelling of 1226474296369 in words is "one trillion, two hundred twenty-six billion, four hundred seventy-four million, two hundred ninety-six thousand, three hundred sixty-nine".