1491029370 has 320 divisors, whose sum is σ = 4610390400. Its totient is φ = 343388160.

The previous prime is 1491029359. The next prime is 1491029381. The reversal of 1491029370 is 739201941.

It is an interprime number because it is at equal distance from previous prime (1491029359) and next prime (1491029381).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 159 ways as a sum of consecutive naturals, for example, 10726761 + ... + 10726899.

It is an arithmetic number, because the mean of its divisors is an integer number (14407470).

Almost surely, 2^1491029370 is an apocalyptic number.

1491029370 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 1491029370, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2305195200).

1491029370 is an abundant number, since it is smaller than the sum of its proper divisors (3119361030).

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

1491029370 is a wasteful number, since it uses less digits than its factorization.

1491029370 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 235 (or 226 counting only the distinct ones).

The product of its (nonzero) digits is 13608, while the sum is 36.

The square root of 1491029370 is about 38613.8494584521. The cubic root of 1491029370 is about 1142.4277210410.

The spelling of 1491029370 in words is "one billion, four hundred ninety-one million, twenty-nine thousand, three hundred seventy".