1420045556 has 6 divisors (see below), whose sum is σ = 2485079730. Its totient is φ = 710022776.

The previous prime is 1420045531. The next prime is 1420045559. The reversal of 1420045556 is 6555400241.

It can be written as a sum of positive squares in only one way, i.e., 1148125456 + 271920100 = 33884^2 + 16490^2 .

It is a super-2 number, since 2×1420045556² = 4033058762230698272, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1420045559) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 177505691 + ... + 177505698.

It is an arithmetic number, because the mean of its divisors is an integer number (414179955).

Almost surely, 2^1420045556 is an apocalyptic number.

It is an amenable number.

1420045556 is a deficient number, since it is larger than the sum of its proper divisors (1065034174).

1420045556 is a wasteful number, since it uses less digits than its factorization.

1420045556 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 355011393 (or 355011391 counting only the distinct ones).

The product of its (nonzero) digits is 24000, while the sum is 32.

The square root of 1420045556 is about 37683.4918233435. The cubic root of 1420045556 is about 1124.0028843279.

Adding to 1420045556 its reverse (6555400241), we get a palindrome (7975445797).

The spelling of 1420045556 in words is "one billion, four hundred twenty million, forty-five thousand, five hundred fifty-six".