57921434 has 8 divisors (see below), whose sum is σ = 86976180. Its totient is φ = 28929376.

The previous prime is 57921407. The next prime is 57921463. The reversal of 57921434 is 43412975.

It can be written as a sum of positive squares in 2 ways, for example, as 57714409 + 207025 = 7597^2 + 455^2 .

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

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 57921394 and 57921403.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 13289 + ... + 17100.

Almost surely, 2^57921434 is an apocalyptic number.

57921434 is a deficient number, since it is larger than the sum of its proper divisors (29054746).

57921434 is a wasteful number, since it uses less digits than its factorization.

57921434 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 31344.

The product of its digits is 30240, while the sum is 35.

The square root of 57921434 is about 7610.6132473014. The cubic root of 57921434 is about 386.9128038811.

The spelling of 57921434 in words is "fifty-seven million, nine hundred twenty-one thousand, four hundred thirty-four".