1316947950 has 96 divisors (see below), whose sum is σ = 3819993600. Its totient is φ = 332696160.

The previous prime is 1316947937. The next prime is 1316947967. The reversal of 1316947950 is 597496131.

1316947950 is a `hidden beast` number, since 13 + 169 + 479 + 5 + 0 = 666.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a junction number, because it is equal to n+sod(n) for n = 1316947896 and 1316947905.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 22 + ... + 51321.

It is an arithmetic number, because the mean of its divisors is an integer number (39791600).

Almost surely, 2^1316947950 is an apocalyptic number.

1316947950 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 1316947950, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1909996800).

1316947950 is an abundant number, since it is smaller than the sum of its proper divisors (2503045650).

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

1316947950 is a wasteful number, since it uses less digits than its factorization.

1316947950 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 51383 (or 51372 counting only the distinct ones).

The product of its (nonzero) digits is 204120, while the sum is 45.

The square root of 1316947950 is about 36289.7774862288. Note that the first 3 decimals coincide. The cubic root of 1316947950 is about 1096.1152083547.

The spelling of 1316947950 in words is "one billion, three hundred sixteen million, nine hundred forty-seven thousand, nine hundred fifty".