1002420200 has 24 divisors (see below), whose sum is σ = 2330627430. Its totient is φ = 400968000.

The previous prime is 1002420187. The next prime is 1002420241. The reversal of 1002420200 is 20242001.

It can be written as a sum of positive squares in 3 ways, for example, as 616926244 + 385493956 = 24838^2 + 19634^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 2505851 + ... + 2506250.

Almost surely, 2^1002420200 is an apocalyptic number.

1002420200 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1002420200 is an abundant number, since it is smaller than the sum of its proper divisors (1328207230).

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

1002420200 is a wasteful number, since it uses less digits than its factorization.

1002420200 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5012117 (or 5012108 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 11.

The square root of 1002420200 is about 31661.0201983448. The cubic root of 1002420200 is about 1000.8060833883.

Adding to 1002420200 its reverse (20242001), we get a palindrome (1022662201).

The spelling of 1002420200 in words is "one billion, two million, four hundred twenty thousand, two hundred".