1020340210440 has 64 divisors (see below), whose sum is σ = 3073216023360. Its totient is φ = 271006688000.

The previous prime is 1020340210387. The next prime is 1020340210453. The reversal of 1020340210440 is 440120430201.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 16907799 + ... + 16968038.

It is an arithmetic number, because the mean of its divisors is an integer number (48019000365).

Almost surely, 2^{1020340210440} is an apocalyptic number.

1020340210440 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1020340210440 is an abundant number, since it is smaller than the sum of its proper divisors (2052875812920).

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

1020340210440 is a wasteful number, since it uses less digits than its factorization.

1020340210440 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 33876102 (or 33876098 counting only the distinct ones).

The product of its (nonzero) digits is 768, while the sum is 21.

Adding to 1020340210440 its reverse (440120430201), we get a palindrome (1460460640641).

The spelling of 1020340210440 in words is "one trillion, twenty billion, three hundred forty million, two hundred ten thousand, four hundred forty".