1945473 has 8 divisors (see below), whose sum is σ = 2636736. Its totient is φ = 1275600.

The previous prime is 1945457. The next prime is 1945483. The reversal of 1945473 is 3745491.

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

It is not a de Polignac number, because 1945473 - 2⁴ = 1945457 is a prime.

1945473 is a lucky number.

It is not an unprimeable number, because it can be changed into a prime (1945403) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5133 + ... + 5498.

It is an arithmetic number, because the mean of its divisors is an integer number (329592).

2^1945473 is an apocalyptic number.

It is an amenable number.

1945473 is a deficient number, since it is larger than the sum of its proper divisors (691263).

1945473 is a wasteful number, since it uses less digits than its factorization.

1945473 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10695.

The product of its digits is 15120, while the sum is 33.

The square root of 1945473 is about 1394.8021365054. The cubic root of 1945473 is about 124.8365436828.

The spelling of 1945473 in words is "one million, nine hundred forty-five thousand, four hundred seventy-three".