1949391360 has 800 divisors, whose sum is σ = 8555880960. Its totient is φ = 414056448.

The previous prime is 1949391349. The next prime is 1949391391. The reversal of 1949391360 is 631939491.

1949391360 is a `hidden beast` number, since 19 + 493 + 91 + 3 + 60 = 666.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 79 ways as a sum of consecutive naturals, for example, 24675801 + ... + 24675879.

Almost surely, 2^1949391360 is an apocalyptic number.

1949391360 is a gapful number since it is divisible by the number (10) 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 1949391360, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (4277940480).

1949391360 is an abundant number, since it is smaller than the sum of its proper divisors (6606489600).

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

1949391360 is an equidigital number, since it uses as much as digits as its factorization.

1949391360 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 138 (or 113 counting only the distinct ones).

The product of its (nonzero) digits is 157464, while the sum is 45.

The square root of 1949391360 is about 44151.9123028663. The cubic root of 1949391360 is about 1249.2029820513.

The spelling of 1949391360 in words is "one billion, nine hundred forty-nine million, three hundred ninety-one thousand, three hundred sixty".