1020873040 has 80 divisors (see below), whose sum is σ = 2725629120. Its totient is φ = 351682560.

The previous prime is 1020873017. The next prime is 1020873079. The reversal of 1020873040 is 403780201.

It is a tau number, because it is divible by the number of its divisors (80).

It is a junction number, because it is equal to n+sod(n) for n = 1020872996 and 1020873014.

It is a congruent number.

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, 13809 + ... + 47248.

It is an arithmetic number, because the mean of its divisors is an integer number (34070364).

Almost surely, 2^1020873040 is an apocalyptic number.

1020873040 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1020873040 is an abundant number, since it is smaller than the sum of its proper divisors (1704756080).

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

1020873040 is a wasteful number, since it uses less digits than its factorization.

1020873040 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 61100 (or 61094 counting only the distinct ones).

The product of its (nonzero) digits is 1344, while the sum is 25.

The square root of 1020873040 is about 31951.1038932930. The cubic root of 1020873040 is about 1006.9098243560.

The spelling of 1020873040 in words is "one billion, twenty million, eight hundred seventy-three thousand, forty".