19342645 has 16 divisors (see below), whose sum is σ = 26627328. Its totient is φ = 13213440.

The previous prime is 19342639. The next prime is 19342663. The reversal of 19342645 is 54624391.

It is a happy number.

It is not a de Polignac number, because 19342645 - 2⁵ = 19342613 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 19342645.

It is a congruent number.

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, 9997 + ... + 11773.

It is an arithmetic number, because the mean of its divisors is an integer number (1664208).

Almost surely, 2^19342645 is an apocalyptic number.

It is an amenable number.

19342645 is a deficient number, since it is larger than the sum of its proper divisors (7284683).

19342645 is a wasteful number, since it uses less digits than its factorization.

19342645 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2100.

The product of its digits is 25920, while the sum is 34.

The square root of 19342645 is about 4398.0273987323. The cubic root of 19342645 is about 268.4346783150.

The spelling of 19342645 in words is "nineteen million, three hundred forty-two thousand, six hundred forty-five".