1020373620 has 144 divisors (see below), whose sum is σ = 3311602560. Its totient is φ = 229955328.

The previous prime is 1020373583. The next prime is 1020373621. The reversal of 1020373620 is 263730201.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1020373621) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 4455666 + ... + 4455894.

It is an arithmetic number, because the mean of its divisors is an integer number (22997240).

Almost surely, 2^1020373620 is an apocalyptic number.

1020373620 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1020373620, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1655801280).

1020373620 is an abundant number, since it is smaller than the sum of its proper divisors (2291228940).

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

1020373620 is a wasteful number, since it uses less digits than its factorization.

1020373620 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 454 (or 349 counting only the distinct ones).

The product of its (nonzero) digits is 1512, while the sum is 24.

The square root of 1020373620 is about 31943.2875577953. The cubic root of 1020373620 is about 1006.7456012156.

The spelling of 1020373620 in words is "one billion, twenty million, three hundred seventy-three thousand, six hundred twenty".