1955419434 has 16 divisors (see below), whose sum is σ = 4345376640. Its totient is φ = 651806460.

The previous prime is 1955419421. The next prime is 1955419463. The reversal of 1955419434 is 4349145591.

1955419434 is a `hidden beast` number, since 1 + 9 + 554 + 1 + 94 + 3 + 4 = 666.

It is a self number, because there is not a number n which added to its sum of digits gives 1955419434.

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, 18105682 + ... + 18105789.

It is an arithmetic number, because the mean of its divisors is an integer number (271586040).

Almost surely, 2^1955419434 is an apocalyptic number.

1955419434 is an abundant number, since it is smaller than the sum of its proper divisors (2389957206).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1955419434 is a wasteful number, since it uses less digits than its factorization.

1955419434 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 36211482 (or 36211476 counting only the distinct ones).

The product of its digits is 388800, while the sum is 45.

The square root of 1955419434 is about 44220.1247623749. The cubic root of 1955419434 is about 1250.4892877064.

The spelling of 1955419434 in words is "one billion, nine hundred fifty-five million, four hundred nineteen thousand, four hundred thirty-four".