456842 has 4 divisors (see below), whose sum is σ = 685266. Its totient is φ = 228420.

The previous prime is 456821. The next prime is 456871. The reversal of 456842 is 248654.

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

It can be written as a sum of positive squares in only one way, i.e., 373321 + 83521 = 611^2 + 289^2 .

It is a super-2 number, since 2×456842² = 417409225928, which contains 22 as substring.

It is an unprimeable number.

456842 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 114209 + ... + 114212.

2⁴⁵⁶⁸⁴² is an apocalyptic number.

456842 is a deficient number, since it is larger than the sum of its proper divisors (228424).

456842 is a wasteful number, since it uses less digits than its factorization.

456842 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 228423.

The product of its digits is 7680, while the sum is 29.

The square root of 456842 is about 675.9008803072. The cubic root of 456842 is about 77.0173683202.

The spelling of 456842 in words is "four hundred fifty-six thousand, eight hundred forty-two".