1978952050 has 24 divisors (see below), whose sum is σ = 3713435316. Its totient is φ = 784573440.

The previous prime is 1978952047. The next prime is 1978952051. The reversal of 1978952050 is 502598791.

It can be written as a sum of positive squares in 6 ways, for example, as 215707969 + 1763244081 = 14687^2 + 41991^2 .

It is not an unprimeable number, because it can be changed into a prime (1978952051) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 169479 + ... + 180778.

Almost surely, 2^1978952050 is an apocalyptic number.

1978952050 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1978952050 is a deficient number, since it is larger than the sum of its proper divisors (1734483266).

1978952050 is a wasteful number, since it uses less digits than its factorization.

1978952050 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 350382 (or 350377 counting only the distinct ones).

The product of its (nonzero) digits is 226800, while the sum is 46.

The square root of 1978952050 is about 44485.4139016375. The cubic root of 1978952050 is about 1255.4856614648.

The spelling of 1978952050 in words is "one billion, nine hundred seventy-eight million, nine hundred fifty-two thousand, fifty".