19297090340 has 48 divisors (see below), whose sum is σ = 45286141824. Its totient is φ = 6845971200.

The previous prime is 19297090301. The next prime is 19297090357. The reversal of 19297090340 is 4309079291.

It is a Harshad number since it is a multiple of its sum of digits (44).

It is a junction number, because it is equal to n+sod(n) for n = 19297090291 and 19297090300.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1060664 + ... + 1078703.

It is an arithmetic number, because the mean of its divisors is an integer number (943461288).

Almost surely, 2^19297090340 is an apocalyptic number.

19297090340 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

19297090340 is an abundant number, since it is smaller than the sum of its proper divisors (25989051484).

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

19297090340 is a wasteful number, since it uses less digits than its factorization.

19297090340 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2139428 (or 2139426 counting only the distinct ones).

The product of its (nonzero) digits is 122472, while the sum is 44.

The spelling of 19297090340 in words is "nineteen billion, two hundred ninety-seven million, ninety thousand, three hundred forty".