47128746 has 16 divisors (see below), whose sum is σ = 107722944. Its totient is φ = 13465344.

The previous prime is 47128717. The next prime is 47128747. The reversal of 47128746 is 64782174.

It is a super-2 number, since 2×47128746² = 4442237399065032, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (47128747) 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, 561015 + ... + 561098.

It is an arithmetic number, because the mean of its divisors is an integer number (6732684).

Almost surely, 2^47128746 is an apocalyptic number.

47128746 is an abundant number, since it is smaller than the sum of its proper divisors (60594198).

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

47128746 is a wasteful number, since it uses less digits than its factorization.

47128746 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1122125.

The product of its digits is 75264, while the sum is 39.

The square root of 47128746 is about 6865.0379459986. The cubic root of 47128746 is about 361.2118266836.

It can be divided in two parts, 47128 and 746, that added together give a palindrome (47874).

The spelling of 47128746 in words is "forty-seven million, one hundred twenty-eight thousand, seven hundred forty-six".