1515420200 has 48 divisors (see below), whose sum is σ = 4026691680. Its totient is φ = 519572160.

The previous prime is 1515420199. The next prime is 1515420293. The reversal of 1515420200 is 20245151.

It is a Harshad number since it is a multiple of its sum of digits (20).

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 539822 + ... + 542621.

It is an arithmetic number, because the mean of its divisors is an integer number (83889410).

Almost surely, 2^1515420200 is an apocalyptic number.

1515420200 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1515420200 is an abundant number, since it is smaller than the sum of its proper divisors (2511271480).

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

1515420200 is a wasteful number, since it uses less digits than its factorization.

1515420200 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1082466 (or 1082457 counting only the distinct ones).

The product of its (nonzero) digits is 400, while the sum is 20.

The square root of 1515420200 is about 38928.3983744515. The cubic root of 1515420200 is about 1148.6234821786.

Adding to 1515420200 its reverse (20245151), we get a palindrome (1535665351).

The spelling of 1515420200 in words is "one billion, five hundred fifteen million, four hundred twenty thousand, two hundred".