5491830 has 32 divisors (see below), whose sum is σ = 13400928. Its totient is φ = 1440000.

The previous prime is 5491819. The next prime is 5491841. The reversal of 5491830 is 381945.

It is an interprime number because it is at equal distance from previous prime (5491819) and next prime (5491841).

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 330 + ... + 3330.

It is an arithmetic number, because the mean of its divisors is an integer number (418779).

Almost surely, 2^5491830 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 5491830, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (6700464).

5491830 is an abundant number, since it is smaller than the sum of its proper divisors (7909098).

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

5491830 is a wasteful number, since it uses less digits than its factorization.

5491830 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3072.

The product of its (nonzero) digits is 4320, while the sum is 30.

The square root of 5491830 is about 2343.4653827185. The cubic root of 5491830 is about 176.4299705865.

The spelling of 5491830 in words is "five million, four hundred ninety-one thousand, eight hundred thirty".