1491122232 has 48 divisors (see below), whose sum is σ = 4177719000. Its totient is φ = 479900736.

The previous prime is 1491122219. The next prime is 1491122239. The reversal of 1491122232 is 2322211941.

It is a nude number because it is divisible by every one of its digits.

It is a junction number, because it is equal to n+sod(n) for n = 1491122196 and 1491122205.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1491122239) by changing a digit.

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 11 ways as a sum of consecutive naturals, for example, 354982 + ... + 359157.

Almost surely, 2^1491122232 is an apocalyptic number.

1491122232 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

1491122232 is an abundant number, since it is smaller than the sum of its proper divisors (2686596768).

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

1491122232 is a wasteful number, since it uses less digits than its factorization.

1491122232 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 714180 (or 714173 counting only the distinct ones).

The product of its digits is 1728, while the sum is 27.

The square root of 1491122232 is about 38615.0518839481. The cubic root of 1491122232 is about 1142.4514375246.

The spelling of 1491122232 in words is "one billion, four hundred ninety-one million, one hundred twenty-two thousand, two hundred thirty-two".