4991132 has 24 divisors (see below), whose sum is σ = 9570960. Its totient is φ = 2266880.

The previous prime is 4991131. The next prime is 4991137. The reversal of 4991132 is 2311994.

It is a happy number.

It is a super-2 number, since 2×4991132² = 49822797282848, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (29).

It is a junction number, because it is equal to n+sod(n) for n = 4991095 and 4991104.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4991131) 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, 707 + ... + 3237.

It is an arithmetic number, because the mean of its divisors is an integer number (398790).

Almost surely, 2^4991132 is an apocalyptic number.

It is an amenable number.

4991132 is a deficient number, since it is larger than the sum of its proper divisors (4579828).

4991132 is a wasteful number, since it uses less digits than its factorization.

4991132 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2581 (or 2579 counting only the distinct ones).

The product of its digits is 1944, while the sum is 29.

The square root of 4991132 is about 2234.0841523989. The cubic root of 4991132 is about 170.8964410641.

The spelling of 4991132 in words is "four million, nine hundred ninety-one thousand, one hundred thirty-two".