1491605952 has 112 divisors (see below), whose sum is σ = 4135526400. Its totient is φ = 473840640.

The previous prime is 1491605917. The next prime is 1491606037. The reversal of 1491605952 is 2595061941.

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, 438177 + ... + 441567.

Almost surely, 2^1491605952 is an apocalyptic number.

1491605952 is a gapful number since it is divisible by the number (12) 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 1491605952, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2067763200).

1491605952 is an abundant number, since it is smaller than the sum of its proper divisors (2643920448).

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

1491605952 is a wasteful number, since it uses less digits than its factorization.

1491605952 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3514 (or 3504 counting only the distinct ones).

The product of its (nonzero) digits is 97200, while the sum is 42.

The square root of 1491605952 is about 38621.3147368134. The cubic root of 1491605952 is about 1142.5749612373.

The spelling of 1491605952 in words is "one billion, four hundred ninety-one million, six hundred five thousand, nine hundred fifty-two".