1050809978 has 8 divisors (see below), whose sum is σ = 1590946272. Its totient is φ = 520494556.

The previous prime is 1050809957. The next prime is 1050809987. The reversal of 1050809978 is 8799080501.

It is a happy number.

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

It is a super-2 number, since 2×1050809978² = 2208403219728720968, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2454950 + ... + 2455377.

It is an arithmetic number, because the mean of its divisors is an integer number (198868284).

Almost surely, 2^1050809978 is an apocalyptic number.

1050809978 is a deficient number, since it is larger than the sum of its proper divisors (540136294).

1050809978 is a wasteful number, since it uses less digits than its factorization.

1050809978 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4910436.

The product of its (nonzero) digits is 181440, while the sum is 47.

The square root of 1050809978 is about 32416.1993145403. The cubic root of 1050809978 is about 1016.6576416052.

The spelling of 1050809978 in words is "one billion, fifty million, eight hundred nine thousand, nine hundred seventy-eight".