47228920 has 16 divisors (see below), whose sum is σ = 106265160. Its totient is φ = 18891552.

The previous prime is 47228917. The next prime is 47228933. The reversal of 47228920 is 2982274.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 590322 + ... + 590401.

Almost surely, 2^47228920 is an apocalyptic number.

47228920 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

47228920 is an abundant number, since it is smaller than the sum of its proper divisors (59036240).

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

47228920 is a wasteful number, since it uses less digits than its factorization.

47228920 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1180734 (or 1180730 counting only the distinct ones).

The product of its (nonzero) digits is 16128, while the sum is 34.

The square root of 47228920 is about 6872.3300269996. The cubic root of 47228920 is about 361.4675688789.

It can be divided in two parts, 472 and 28920, that added together give a palindrome (29392).

The spelling of 47228920 in words is "forty-seven million, two hundred twenty-eight thousand, nine hundred twenty".