1204226420 has 24 divisors (see below), whose sum is σ = 2597225064. Its totient is φ = 468671616.

The previous prime is 1204226389. The next prime is 1204226449. The reversal of 1204226420 is 246224021.

It can be written as a sum of positive squares in 4 ways, for example, as 224160784 + 980065636 = 14972^2 + 31306^2 .

It is a super-2 number, since 2×1204226420² = 2900322541252032800, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 812927 + ... + 814406.

It is an arithmetic number, because the mean of its divisors is an integer number (108217711).

Almost surely, 2^1204226420 is an apocalyptic number.

1204226420 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1204226420 is an abundant number, since it is smaller than the sum of its proper divisors (1392998644).

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

1204226420 is a wasteful number, since it uses less digits than its factorization.

1204226420 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1627379 (or 1627377 counting only the distinct ones).

The product of its (nonzero) digits is 1536, while the sum is 23.

The square root of 1204226420 is about 34701.9656503778. The cubic root of 1204226420 is about 1063.9046744550.

The spelling of 1204226420 in words is "one billion, two hundred four million, two hundred twenty-six thousand, four hundred twenty".