19480945 has 32 divisors (see below), whose sum is σ = 26780544. Its totient is φ = 13478400.

The previous prime is 19480939. The next prime is 19480969. The reversal of 19480945 is 54908491.

It is not a de Polignac number, because 19480945 - 2⁷ = 19480817 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 19480898 and 19480907.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 119434 + ... + 119596.

It is an arithmetic number, because the mean of its divisors is an integer number (836892).

Almost surely, 2^19480945 is an apocalyptic number.

It is an amenable number.

19480945 is a deficient number, since it is larger than the sum of its proper divisors (7299599).

19480945 is a wasteful number, since it uses less digits than its factorization.

19480945 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 273.

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

The square root of 19480945 is about 4413.7223519383. The cubic root of 19480945 is about 269.0729292825.

The spelling of 19480945 in words is "nineteen million, four hundred eighty thousand, nine hundred forty-five".