46428728 has 16 divisors (see below), whose sum is σ = 89177760. Its totient is φ = 22648000.

The previous prime is 46428721. The next prime is 46428737. The reversal of 46428728 is 82782464.

It is a Harshad number since it is a multiple of its sum of digits (41).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (46428721) by changing a digit.

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, 70448 + ... + 71103.

It is an arithmetic number, because the mean of its divisors is an integer number (5573610).

Almost surely, 2^46428728 is an apocalyptic number.

It is an amenable number.

46428728 is a deficient number, since it is larger than the sum of its proper divisors (42749032).

46428728 is a wasteful number, since it uses less digits than its factorization.

46428728 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 141598 (or 141594 counting only the distinct ones).

The product of its digits is 172032, while the sum is 41.

The square root of 46428728 is about 6813.8629278846. The cubic root of 46428728 is about 359.4145009435.

It can be divided in two parts, 464 and 28728, that added together give a palindrome (29192).

The spelling of 46428728 in words is "forty-six million, four hundred twenty-eight thousand, seven hundred twenty-eight".