1491740088 has 32 divisors (see below), whose sum is σ = 3849653760. Its totient is φ = 481206240.

The previous prime is 1491740087. The next prime is 1491740093. The reversal of 1491740088 is 8800471941.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1491740083) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1001770 + ... + 1003257.

It is an arithmetic number, because the mean of its divisors is an integer number (120301680).

Almost surely, 2^1491740088 is an apocalyptic number.

It is an amenable number.

1491740088 is an abundant number, since it is smaller than the sum of its proper divisors (2357913672).

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

1491740088 is a wasteful number, since it uses less digits than its factorization.

1491740088 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2005067 (or 2005063 counting only the distinct ones).

The product of its (nonzero) digits is 64512, while the sum is 42.

The square root of 1491740088 is about 38623.0512518108. The cubic root of 1491740088 is about 1142.6092097467.

The spelling of 1491740088 in words is "one billion, four hundred ninety-one million, seven hundred forty thousand, eighty-eight".