19413396 has 18 divisors (see below), whose sum is σ = 49072842. Its totient is φ = 6471120.

The previous prime is 19413389. The next prime is 19413467. The reversal of 19413396 is 69331491.

It can be written as a sum of positive squares in only one way, i.e., 19236996 + 176400 = 4386^2 + 420^2 .

It is a tau number, because it is divible by the number of its divisors (18).

It is a Smith number, since the sum of its digits (36) coincides with the sum of the digits of its prime factors.

It is a Harshad number since it is a multiple of its sum of digits (36), and also a Moran number because the ratio is a prime number: 539261 = 19413396 / (1 + 9 + 4 + 1 + 3 + 3 + 9 + 6).

It is a nude number because it is divisible by every one of its digits.

It is a self number, because there is not a number n which added to its sum of digits gives 19413396.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 269595 + ... + 269666.

It is an arithmetic number, because the mean of its divisors is an integer number (2726269).

Almost surely, 2^19413396 is an apocalyptic number.

It is an amenable number.

19413396 is an abundant number, since it is smaller than the sum of its proper divisors (29659446).

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

19413396 is a wasteful number, since it uses less digits than its factorization.

19413396 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 539271 (or 539266 counting only the distinct ones).

The product of its digits is 17496, while the sum is 36.

The square root of 19413396 is about 4406.0635492467. The cubic root of 19413396 is about 268.7615710900.

The spelling of 19413396 in words is "nineteen million, four hundred thirteen thousand, three hundred ninety-six".