1973845364 has 24 divisors (see below), whose sum is σ = 3551607528. Its totient is φ = 959160960.

The previous prime is 1973845339. The next prime is 1973845373. The reversal of 1973845364 is 4635483791.

It can be written as a sum of positive squares in 4 ways, for example, as 1187491600 + 786353764 = 34460^2 + 28042^2 .

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 132182 + ... + 146354.

It is an arithmetic number, because the mean of its divisors is an integer number (147983647).

Almost surely, 2^1973845364 is an apocalyptic number.

It is an amenable number.

1973845364 is a deficient number, since it is larger than the sum of its proper divisors (1577762164).

1973845364 is a wasteful number, since it uses less digits than its factorization.

1973845364 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15155 (or 15153 counting only the distinct ones).

The product of its digits is 2177280, while the sum is 50.

The square root of 1973845364 is about 44427.9795174167. The cubic root of 1973845364 is about 1254.4048042475.

The spelling of 1973845364 in words is "one billion, nine hundred seventy-three million, eight hundred forty-five thousand, three hundred sixty-four".