47081900 has 18 divisors (see below), whose sum is σ = 102167940. Its totient is φ = 18832720.

The previous prime is 47081893. The next prime is 47081911. The reversal of 47081900 is 918074.

It is a super-2 number, since 2×47081900² = 4433410615220000, which contains 22 as substring.

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, 235310 + ... + 235509.

Almost surely, 2^47081900 is an apocalyptic number.

It is an amenable number.

47081900 is an abundant number, since it is smaller than the sum of its proper divisors (55086040).

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

47081900 is a wasteful number, since it uses less digits than its factorization.

47081900 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 470833 (or 470826 counting only the distinct ones).

The product of its (nonzero) digits is 2016, while the sum is 29.

The square root of 47081900 is about 6861.6251719254. The cubic root of 47081900 is about 361.0921054209.

Adding to 47081900 its reverse (918074), we get a palindrome (47999974).

The spelling of 47081900 in words is "forty-seven million, eighty-one thousand, nine hundred".