46991728 has 80 divisors (see below), whose sum is σ = 108564480. Its totient is φ = 19289088.

The previous prime is 46991719. The next prime is 46991741. The reversal of 46991728 is 82719964.

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 15 ways as a sum of consecutive naturals, for example, 415800 + ... + 415912.

It is an arithmetic number, because the mean of its divisors is an integer number (1357056).

Almost surely, 2^46991728 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 46991728, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (54282240).

46991728 is an abundant number, since it is smaller than the sum of its proper divisors (61572752).

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

46991728 is a wasteful number, since it uses less digits than its factorization.

46991728 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 254 (or 248 counting only the distinct ones).

The product of its digits is 217728, while the sum is 46.

The square root of 46991728 is about 6855.0512762488. The cubic root of 46991728 is about 360.8614349920.

The spelling of 46991728 in words is "forty-six million, nine hundred ninety-one thousand, seven hundred twenty-eight".