1422561556 has 18 divisors (see below), whose sum is σ = 2695713342. Its totient is φ = 656566560.

The previous prime is 1422561463. The next prime is 1422561571. The reversal of 1422561556 is 6551652241.

It can be written as a sum of positive squares in 3 ways, for example, as 34999056 + 1387562500 = 5916^2 + 37250^2 .

It is a super-2 number, since 2×1422561556² = 4047362761218282272, 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 5 ways as a sum of consecutive naturals, for example, 1051515 + ... + 1052866.

Almost surely, 2^1422561556 is an apocalyptic number.

It is an amenable number.

1422561556 is a deficient number, since it is larger than the sum of its proper divisors (1273151786).

1422561556 is a wasteful number, since it uses less digits than its factorization.

1422561556 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2104411 (or 2104396 counting only the distinct ones).

The product of its digits is 72000, while the sum is 37.

The square root of 1422561556 is about 37716.8603677454. The cubic root of 1422561556 is about 1124.6663190794. Note that the first 3 decimals are identical.

The spelling of 1422561556 in words is "one billion, four hundred twenty-two million, five hundred sixty-one thousand, five hundred fifty-six".