46691920 has 80 divisors (see below), whose sum is σ = 119867328. Its totient is φ = 16773120.

The previous prime is 46691917. The next prime is 46691927. The reversal of 46691920 is 2919664.

It is a tau number, because it is divible by the number of its divisors (80).

It is a self number, because there is not a number n which added to its sum of digits gives 46691920.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (46691927) 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 15 ways as a sum of consecutive naturals, for example, 85087 + ... + 85633.

Almost surely, 2^46691920 is an apocalyptic number.

46691920 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 46691920, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (59933664).

46691920 is an abundant number, since it is smaller than the sum of its proper divisors (73175408).

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

46691920 is a wasteful number, since it uses less digits than its factorization.

46691920 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 668 (or 662 counting only the distinct ones).

The product of its (nonzero) digits is 23328, while the sum is 37.

The square root of 46691920 is about 6833.1486153895. The cubic root of 46691920 is about 360.0923631322.

The spelling of 46691920 in words is "forty-six million, six hundred ninety-one thousand, nine hundred twenty".