1226698404 has 12 divisors (see below), whose sum is σ = 2862296304. Its totient is φ = 408899464.

The previous prime is 1226698381. The next prime is 1226698423. The reversal of 1226698404 is 4048966221.

It is a tau number, because it is divible by the number of its divisors (12).

It is a super-2 number, since 2×1226698404² = 3009577948752294432, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 51112422 + ... + 51112445.

It is an arithmetic number, because the mean of its divisors is an integer number (238524692).

Almost surely, 2^1226698404 is an apocalyptic number.

It is an amenable number.

1226698404 is an abundant number, since it is smaller than the sum of its proper divisors (1635597900).

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

1226698404 is a wasteful number, since it uses less digits than its factorization.

1226698404 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 102224874 (or 102224872 counting only the distinct ones).

The product of its (nonzero) digits is 165888, while the sum is 42.

The square root of 1226698404 is about 35024.2545102676. The cubic root of 1226698404 is about 1070.4817477243.

The spelling of 1226698404 in words is "one billion, two hundred twenty-six million, six hundred ninety-eight thousand, four hundred four".