557742 has 8 divisors (see below), whose sum is σ = 1115496. Its totient is φ = 185912.

The previous prime is 557741. The next prime is 557743. The reversal of 557742 is 247755.

It is an interprime number because it is at equal distance from previous prime (557741) and next prime (557743).

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

557742 is an admirable number.

It is a super-2 number, since 2×557742² = 622152277128, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (557741) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 46473 + ... + 46484.

It is an arithmetic number, because the mean of its divisors is an integer number (139437).

2⁵⁵⁷⁷⁴² is an apocalyptic number.

557742 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

557742 is a wasteful number, since it uses less digits than its factorization.

557742 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 92962.

The product of its digits is 9800, while the sum is 30.

The square root of 557742 is about 746.8212637573. The cubic root of 557742 is about 82.3147726888.

The spelling of 557742 in words is "five hundred fifty-seven thousand, seven hundred forty-two".