19249345404 has 36 divisors (see below), whose sum is σ = 48662490240. Its totient is φ = 6415865280.

The previous prime is 19249345397. The next prime is 19249345439. The reversal of 19249345404 is 40454394291.

19249345404 is a `hidden beast` number, since 19 + 2 + 4 + 93 + 4 + 540 + 4 = 666.

It is a tau number, because it is divible by the number of its divisors (36).

It is a self number, because there is not a number n which added to its sum of digits gives 19249345404.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 590032 + ... + 621800.

It is an arithmetic number, because the mean of its divisors is an integer number (1351735840).

Almost surely, 2^19249345404 is an apocalyptic number.

It is an amenable number.

19249345404 is an abundant number, since it is smaller than the sum of its proper divisors (29413144836).

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

19249345404 is a wasteful number, since it uses less digits than its factorization.

19249345404 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 48610 (or 48605 counting only the distinct ones).

The product of its (nonzero) digits is 622080, while the sum is 45.

The spelling of 19249345404 in words is "nineteen billion, two hundred forty-nine million, three hundred forty-five thousand, four hundred four".