19429364 has 6 divisors (see below), whose sum is σ = 34001394. Its totient is φ = 9714680.

The previous prime is 19429357. The next prime is 19429373. The reversal of 19429364 is 46392491.

It can be written as a sum of positive squares in only one way, i.e., 15665764 + 3763600 = 3958^2 + 1940^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2428667 + ... + 2428674.

It is an arithmetic number, because the mean of its divisors is an integer number (5666899).

Almost surely, 2^19429364 is an apocalyptic number.

It is an amenable number.

19429364 is a deficient number, since it is larger than the sum of its proper divisors (14572030).

19429364 is a wasteful number, since it uses less digits than its factorization.

19429364 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4857345 (or 4857343 counting only the distinct ones).

The product of its digits is 46656, while the sum is 38.

The square root of 19429364 is about 4407.8752250943. The cubic root of 19429364 is about 268.8352385833.

The spelling of 19429364 in words is "nineteen million, four hundred twenty-nine thousand, three hundred sixty-four".