491223030 has 32 divisors (see below), whose sum is σ = 1181779200. Its totient is φ = 130676832.

The previous prime is 491223023. The next prime is 491223067. The reversal of 491223030 is 30322194.

It is a super-3 number, since 3×491223030³ (a number of 27 digits) contains 333 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 6970 + ... + 32109.

It is an arithmetic number, because the mean of its divisors is an integer number (36930600).

Almost surely, 2^491223030 is an apocalyptic number.

491223030 is an abundant number, since it is smaller than the sum of its proper divisors (690556170).

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

491223030 is a wasteful number, since it uses less digits than its factorization.

491223030 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 39508.

The product of its (nonzero) digits is 1296, while the sum is 24.

The square root of 491223030 is about 22163.5518362919. The cubic root of 491223030 is about 789.0288927463.

The spelling of 491223030 in words is "four hundred ninety-one million, two hundred twenty-three thousand, thirty".