514721900 has 216 divisors, whose sum is σ = 1440741120. Its totient is φ = 156182400.

The previous prime is 514721897. The next prime is 514721917. The reversal of 514721900 is 9127415.

It is a super-2 number, since 2×514721900² = 529877268679220000, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 71 ways as a sum of consecutive naturals, for example, 4997249 + ... + 4997351.

Almost surely, 2^514721900 is an apocalyptic number.

514721900 is a gapful number since it is divisible by the number (50) 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 514721900, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (720370560).

514721900 is an abundant number, since it is smaller than the sum of its proper divisors (926019220).

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

514721900 is a wasteful number, since it uses less digits than its factorization.

514721900 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 205 (or 187 counting only the distinct ones).

The product of its (nonzero) digits is 2520, while the sum is 29.

The square root of 514721900 is about 22687.4833333272. The cubic root of 514721900 is about 801.4151514569.

The spelling of 514721900 in words is "five hundred fourteen million, seven hundred twenty-one thousand, nine hundred".