1022102440 has 16 divisors (see below), whose sum is σ = 2299730580. Its totient is φ = 408840960.

The previous prime is 1022102429. The next prime is 1022102443. The reversal of 1022102440 is 442012201.

1022102440 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 975562756 + 46539684 = 31234^2 + 6822^2 .

It is not an unprimeable number, because it can be changed into a prime (1022102443) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 12776241 + ... + 12776320.

Almost surely, 2^1022102440 is an apocalyptic number.

1022102440 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1022102440 is an abundant number, since it is smaller than the sum of its proper divisors (1277628140).

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

1022102440 is a wasteful number, since it uses less digits than its factorization.

1022102440 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25552572 (or 25552568 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 16.

The square root of 1022102440 is about 31970.3368765485. The cubic root of 1022102440 is about 1007.3138570824.

Adding to 1022102440 its reverse (442012201), we get a palindrome (1464114641).

The spelling of 1022102440 in words is "one billion, twenty-two million, one hundred two thousand, four hundred forty".