456221042 has 4 divisors (see below), whose sum is σ = 684331566. Its totient is φ = 228110520.

The previous prime is 456221033. The next prime is 456221053. The reversal of 456221042 is 240122654.

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., 456206881 + 14161 = 21359^2 + 119^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 114055259 + ... + 114055262.

Almost surely, 2^456221042 is an apocalyptic number.

456221042 is a deficient number, since it is larger than the sum of its proper divisors (228110524).

456221042 is a wasteful number, since it uses less digits than its factorization.

456221042 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 228110523.

The product of its (nonzero) digits is 3840, while the sum is 26.

The square root of 456221042 is about 21359.3314970296. The cubic root of 456221042 is about 769.8245746429.

Adding to 456221042 its reverse (240122654), we get a palindrome (696343696).

It can be divided in two parts, 45622 and 1042, that added together give a palindrome (46664).

The spelling of 456221042 in words is "four hundred fifty-six million, two hundred twenty-one thousand, forty-two".