19290284394 has 32 divisors (see below), whose sum is σ = 40726255680. Its totient is φ = 6074399232.

The previous prime is 19290284371. The next prime is 19290284411. The reversal of 19290284394 is 49348209291.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 199437 + ... + 279920.

It is an arithmetic number, because the mean of its divisors is an integer number (1272695490).

Almost surely, 2^19290284394 is an apocalyptic number.

19290284394 is an abundant number, since it is smaller than the sum of its proper divisors (21435971286).

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

19290284394 is a wasteful number, since it uses less digits than its factorization.

19290284394 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 479734.

The product of its (nonzero) digits is 1119744, while the sum is 51.

The spelling of 19290284394 in words is "nineteen billion, two hundred ninety million, two hundred eighty-four thousand, three hundred ninety-four".