1556434022 has 64 divisors (see below), whose sum is σ = 2807046144. Its totient is φ = 637943040.

The previous prime is 1556434007. The next prime is 1556434049. The reversal of 1556434022 is 2204346551.

It is a self number, because there is not a number n which added to its sum of digits gives 1556434022.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 2651213 + ... + 2651799.

It is an arithmetic number, because the mean of its divisors is an integer number (43860096).

Almost surely, 2^1556434022 is an apocalyptic number.

1556434022 is a deficient number, since it is larger than the sum of its proper divisors (1250612122).

1556434022 is a wasteful number, since it uses less digits than its factorization.

1556434022 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 813.

The product of its (nonzero) digits is 28800, while the sum is 32.

The square root of 1556434022 is about 39451.6669102840. Note that the first 3 decimals coincide. The cubic root of 1556434022 is about 1158.8936195908.

The spelling of 1556434022 in words is "one billion, five hundred fifty-six million, four hundred thirty-four thousand, twenty-two".