1002244020 has 24 divisors (see below), whose sum is σ = 2806283424. Its totient is φ = 267265056.

The previous prime is 1002244013. The next prime is 1002244039. The reversal of 1002244020 is 204422001.

It is a Harshad number since it is a multiple of its sum of digits (15).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 8351974 + ... + 8352093.

It is an arithmetic number, because the mean of its divisors is an integer number (116928476).

Almost surely, 2^1002244020 is an apocalyptic number.

1002244020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1002244020 is an abundant number, since it is smaller than the sum of its proper divisors (1804039404).

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

1002244020 is a wasteful number, since it uses less digits than its factorization.

1002244020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16704079 (or 16704077 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 15.

The square root of 1002244020 is about 31658.2377905025. The cubic root of 1002244020 is about 1000.7474478492.

Adding to 1002244020 its reverse (204422001), we get a palindrome (1206666021).

The spelling of 1002244020 in words is "one billion, two million, two hundred forty-four thousand, twenty".