1950144894 has 24 divisors (see below), whose sum is σ = 4233801000. Its totient is φ = 648742608.

The previous prime is 1950144887. The next prime is 1950144943. The reversal of 1950144894 is 4984410591.

It is a happy number.

1950144894 is a `hidden beast` number, since 19 + 501 + 4 + 48 + 94 = 666.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 99577 + ... + 117540.

It is an arithmetic number, because the mean of its divisors is an integer number (176408375).

Almost surely, 2^1950144894 is an apocalyptic number.

1950144894 is an abundant number, since it is smaller than the sum of its proper divisors (2283656106).

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

1950144894 is a wasteful number, since it uses less digits than its factorization.

1950144894 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 217624 (or 217621 counting only the distinct ones).

The product of its (nonzero) digits is 207360, while the sum is 45.

The square root of 1950144894 is about 44160.4449026502. Note that the first 3 decimals coincide. The cubic root of 1950144894 is about 1249.3639204305.

The spelling of 1950144894 in words is "one billion, nine hundred fifty million, one hundred forty-four thousand, eight hundred ninety-four".