1091374950 has 24 divisors (see below), whose sum is σ = 2706610248. Its totient is φ = 291033280.

The previous prime is 1091374943. The next prime is 1091374961. The reversal of 1091374950 is 594731901.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 1091374899 and 1091374908.

It is a congruent number.

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 11 ways as a sum of consecutive naturals, for example, 3637767 + ... + 3638066.

It is an arithmetic number, because the mean of its divisors is an integer number (112775427).

Almost surely, 2^1091374950 is an apocalyptic number.

1091374950 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1091374950 is an abundant number, since it is smaller than the sum of its proper divisors (1615235298).

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

1091374950 is a wasteful number, since it uses less digits than its factorization.

1091374950 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7275848 (or 7275843 counting only the distinct ones).

The product of its (nonzero) digits is 34020, while the sum is 39.

The square root of 1091374950 is about 33035.9644932610. The cubic root of 1091374950 is about 1029.5750124040.

The spelling of 1091374950 in words is "one billion, ninety-one million, three hundred seventy-four thousand, nine hundred fifty".