1945282493 has 16 divisors (see below), whose sum is σ = 2429097984. Its totient is φ = 1513422960.

The previous prime is 1945282481. The next prime is 1945282499. The reversal of 1945282493 is 3942825491.

It is a happy number.

It is not a de Polignac number, because 1945282493 - 2¹⁴ = 1945266109 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1945282499) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 30296 + ... + 69342.

It is an arithmetic number, because the mean of its divisors is an integer number (151818624).

Almost surely, 2^1945282493 is an apocalyptic number.

It is an amenable number.

1945282493 is a deficient number, since it is larger than the sum of its proper divisors (483815491).

1945282493 is a wasteful number, since it uses less digits than its factorization.

1945282493 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 39712.

The product of its digits is 622080, while the sum is 47.

The square root of 1945282493 is about 44105.3567381560. The cubic root of 1945282493 is about 1248.3246875055.

The spelling of 1945282493 in words is "one billion, nine hundred forty-five million, two hundred eighty-two thousand, four hundred ninety-three".