1022540044 has 6 divisors (see below), whose sum is σ = 1789445084. Its totient is φ = 511270020.

The previous prime is 1022540039. The next prime is 1022540047. The reversal of 1022540044 is 4400452201.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 1022539997 and 1022540024.

It is not an unprimeable number, because it can be changed into a prime (1022540047) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 127817502 + ... + 127817509.

Almost surely, 2^1022540044 is an apocalyptic number.

It is an amenable number.

1022540044 is a deficient number, since it is larger than the sum of its proper divisors (766905040).

1022540044 is a wasteful number, since it uses less digits than its factorization.

1022540044 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 255635015 (or 255635013 counting only the distinct ones).

The product of its (nonzero) digits is 1280, while the sum is 22.

The square root of 1022540044 is about 31977.1800507800. The cubic root of 1022540044 is about 1007.4575940380.

Adding to 1022540044 its reverse (4400452201), we get a palindrome (5422992245).

The spelling of 1022540044 in words is "one billion, twenty-two million, five hundred forty thousand, forty-four".