19489045 has 8 divisors (see below), whose sum is σ = 23490360. Its totient is φ = 15522240.

The previous prime is 19489031. The next prime is 19489069. The reversal of 19489045 is 54098491.

It can be written as a sum of positive squares in 4 ways, for example, as 11771761 + 7717284 = 3431^2 + 2778^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 19489045 - 2¹⁵ = 19456277 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 19488989 and 19489007.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7366 + ... + 9655.

It is an arithmetic number, because the mean of its divisors is an integer number (2936295).

Almost surely, 2^19489045 is an apocalyptic number.

It is an amenable number.

19489045 is a deficient number, since it is larger than the sum of its proper divisors (4001315).

19489045 is a wasteful number, since it uses less digits than its factorization.

19489045 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17255.

The product of its (nonzero) digits is 51840, while the sum is 40.

The square root of 19489045 is about 4414.6398494101. The cubic root of 19489045 is about 269.1102168085.

The spelling of 19489045 in words is "nineteen million, four hundred eighty-nine thousand, forty-five".