47278232 has 16 divisors (see below), whose sum is σ = 93312600. Its totient is φ = 22394880.

The previous prime is 47278223. The next prime is 47278249. The reversal of 47278232 is 23287274.

It is a super-3 number, since 3×47278232³ (a number of 24 digits) contains 333 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 47278192 and 47278201.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 155369 + ... + 155672.

Almost surely, 2^47278232 is an apocalyptic number.

It is an amenable number.

47278232 is a deficient number, since it is larger than the sum of its proper divisors (46034368).

47278232 is a wasteful number, since it uses less digits than its factorization.

47278232 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 311066 (or 311062 counting only the distinct ones).

The product of its digits is 37632, while the sum is 35.

The square root of 47278232 is about 6875.9168115968. The cubic root of 47278232 is about 361.5933286093.

The spelling of 47278232 in words is "forty-seven million, two hundred seventy-eight thousand, two hundred thirty-two".