19420364 has 12 divisors (see below), whose sum is σ = 34022688. Its totient is φ = 9699600.

The previous prime is 19420361. The next prime is 19420367. The reversal of 19420364 is 46302491.

It is an interprime number because it is at equal distance from previous prime (19420361) and next prime (19420367).

It is not an unprimeable number, because it can be changed into a prime (19420361) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2669 + ... + 6779.

It is an arithmetic number, because the mean of its divisors is an integer number (2835224).

Almost surely, 2^19420364 is an apocalyptic number.

It is an amenable number.

19420364 is a deficient number, since it is larger than the sum of its proper divisors (14602324).

19420364 is a wasteful number, since it uses less digits than its factorization.

19420364 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5296 (or 5294 counting only the distinct ones).

The product of its (nonzero) digits is 5184, while the sum is 29.

The square root of 19420364 is about 4406.8542068010. The cubic root of 19420364 is about 268.7937225421.

The spelling of 19420364 in words is "nineteen million, four hundred twenty thousand, three hundred sixty-four".