47451312 has 40 divisors (see below), whose sum is σ = 136204080. Its totient is φ = 15816960.

The previous prime is 47451311. The next prime is 47451361. The reversal of 47451312 is 21315474.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is not an unprimeable number, because it can be changed into a prime (47451311) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 54489 + ... + 55352.

It is an arithmetic number, because the mean of its divisors is an integer number (3405102).

Almost surely, 2^47451312 is an apocalyptic number.

It is an amenable number.

47451312 is an abundant number, since it is smaller than the sum of its proper divisors (88752768).

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

47451312 is a wasteful number, since it uses less digits than its factorization.

47451312 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 109858 (or 109846 counting only the distinct ones).

The product of its digits is 3360, while the sum is 27.

The square root of 47451312 is about 6888.4912716792. The cubic root of 47451312 is about 362.0340413436.

Adding to 47451312 its reverse (21315474), we get a palindrome (68766786).

The spelling of 47451312 in words is "forty-seven million, four hundred fifty-one thousand, three hundred twelve".