1947422349 has 6 divisors (see below), whose sum is σ = 2812943406. Its totient is φ = 1298281560.

The previous prime is 1947422341. The next prime is 1947422371. The reversal of 1947422349 is 9432247491.

1947422349 is a `hidden beast` number, since 194 + 7 + 422 + 34 + 9 = 666.

It can be written as a sum of positive squares in only one way, i.e., 1920017124 + 27405225 = 43818^2 + 5235^2 .

It is not a de Polignac number, because 1947422349 - 2³ = 1947422341 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1947422341) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 108190122 + ... + 108190139.

It is an arithmetic number, because the mean of its divisors is an integer number (468823901).

Almost surely, 2^1947422349 is an apocalyptic number.

It is an amenable number.

1947422349 is a deficient number, since it is larger than the sum of its proper divisors (865521057).

1947422349 is a wasteful number, since it uses less digits than its factorization.

1947422349 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 216380267 (or 216380264 counting only the distinct ones).

The product of its digits is 435456, while the sum is 45.

The square root of 1947422349 is about 44129.6085298748. The cubic root of 1947422349 is about 1248.7822485036.

The spelling of 1947422349 in words is "one billion, nine hundred forty-seven million, four hundred twenty-two thousand, three hundred forty-nine".