1949455554 has 8 divisors (see below), whose sum is σ = 3898911120. Its totient is φ = 649818516.

The previous prime is 1949455549. The next prime is 1949455567. The reversal of 1949455554 is 4555549491.

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

1949455554 is an admirable number.

It is a junction number, because it is equal to n+sod(n) for n = 1949455497 and 1949455506.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 162454624 + ... + 162454635.

It is an arithmetic number, because the mean of its divisors is an integer number (487363890).

Almost surely, 2^1949455554 is an apocalyptic number.

1949455554 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

1949455554 is a wasteful number, since it uses less digits than its factorization.

1949455554 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 324909264.

The product of its digits is 3240000, while the sum is 51.

The square root of 1949455554 is about 44152.6392642614. The cubic root of 1949455554 is about 1249.2166941014.

The spelling of 1949455554 in words is "one billion, nine hundred forty-nine million, four hundred fifty-five thousand, five hundred fifty-four".