1980933254 has 4 divisors (see below), whose sum is σ = 2971399884. Its totient is φ = 990466626.

The previous prime is 1980933223. The next prime is 1980933257. The reversal of 1980933254 is 4523390891.

It is a semiprime because it is the product of two primes.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1980933257) by changing a digit.

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 as a sum of consecutive naturals, namely, 495233312 + ... + 495233315.

It is an arithmetic number, because the mean of its divisors is an integer number (742849971).

Almost surely, 2^1980933254 is an apocalyptic number.

1980933254 is a deficient number, since it is larger than the sum of its proper divisors (990466630).

1980933254 is an equidigital number, since it uses as much as digits as its factorization.

1980933254 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 990466629.

The product of its (nonzero) digits is 233280, while the sum is 44.

The square root of 1980933254 is about 44507.6763491423. The cubic root of 1980933254 is about 1255.9044931739.

The spelling of 1980933254 in words is "one billion, nine hundred eighty million, nine hundred thirty-three thousand, two hundred fifty-four".