1420255044 has 72 divisors (see below), whose sum is σ = 3889343640. Its totient is φ = 436977216.

The previous prime is 1420255043. The next prime is 1420255087. The reversal of 1420255044 is 4405520241.

It can be written as a sum of positive squares in 4 ways, for example, as 56430144 + 1363824900 = 7512^2 + 36930^2 .

It is a junction number, because it is equal to n+sod(n) for n = 1420254999 and 1420255017.

It is not an unprimeable number, because it can be changed into a prime (1420255043) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 70114 + ... + 88070.

Almost surely, 2^1420255044 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1420255044, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1944671820).

1420255044 is an abundant number, since it is smaller than the sum of its proper divisors (2469088596).

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

1420255044 is a wasteful number, since it uses less digits than its factorization.

1420255044 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18006 (or 17975 counting only the distinct ones).

The product of its (nonzero) digits is 6400, while the sum is 27.

The square root of 1420255044 is about 37686.2712934034. The cubic root of 1420255044 is about 1124.0581533384.

Adding to 1420255044 its reverse (4405520241), we get a palindrome (5825775285).

The spelling of 1420255044 in words is "one billion, four hundred twenty million, two hundred fifty-five thousand, forty-four".