1491327936 has 504 divisors, whose sum is σ = 5480791680. Its totient is φ = 399748608.

The previous prime is 1491327919. The next prime is 1491327983. The reversal of 1491327936 is 6397231941.

It is a tau number, because it is divible by the number of its divisors (504).

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 = 1491327891 and 1491327900.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 71 ways as a sum of consecutive naturals, for example, 14478861 + ... + 14478963.

Almost surely, 2^1491327936 is an apocalyptic number.

1491327936 is a gapful number since it is divisible by the number (16) 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 1491327936, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2740395840).

1491327936 is an abundant number, since it is smaller than the sum of its proper divisors (3989463744).

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

1491327936 is a wasteful number, since it uses less digits than its factorization.

1491327936 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 163 (or 134 counting only the distinct ones).

The product of its digits is 244944, while the sum is 45.

The square root of 1491327936 is about 38617.7153130529. The cubic root of 1491327936 is about 1142.5039697762.

It can be divided in two parts, 14913 and 27936, that added together give a square (42849 = 207²).

The spelling of 1491327936 in words is "one billion, four hundred ninety-one million, three hundred twenty-seven thousand, nine hundred thirty-six".