57671432 has 48 divisors (see below), whose sum is σ = 135476460. Its totient is φ = 22813056.

The previous prime is 57671431. The next prime is 57671437. The reversal of 57671432 is 23417675.

It can be written as a sum of positive squares in 2 ways, for example, as 56942116 + 729316 = 7546^2 + 854^2 .

It is a junction number, because it is equal to n+sod(n) for n = 57671392 and 57671401.

It is not an unprimeable number, because it can be changed into a prime (57671431) by changing a digit.

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 11 ways as a sum of consecutive naturals, for example, 563 + ... + 10754.

Almost surely, 2^57671432 is an apocalyptic number.

57671432 is a gapful number since it is divisible by the number (52) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 57671432, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (67738230).

57671432 is an abundant number, since it is smaller than the sum of its proper divisors (77805028).

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

57671432 is a wasteful number, since it uses less digits than its factorization.

57671432 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11350 (or 11339 counting only the distinct ones).

The product of its digits is 35280, while the sum is 35.

The square root of 57671432 is about 7594.1709224905. The cubic root of 57671432 is about 386.3553333512.

The spelling of 57671432 in words is "fifty-seven million, six hundred seventy-one thousand, four hundred thirty-two".