454340542 has 4 divisors (see below), whose sum is σ = 681510816. Its totient is φ = 227170270.

The previous prime is 454340507. The next prime is 454340561. The reversal of 454340542 is 245043454.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 245043454 = 2 ⋅122521727.

It is a Smith number, since the sum of its digits (31) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 113585134 + ... + 113585137.

It is an arithmetic number, because the mean of its divisors is an integer number (170377704).

Almost surely, 2^454340542 is an apocalyptic number.

454340542 is a deficient number, since it is larger than the sum of its proper divisors (227170274).

454340542 is a wasteful number, since it uses less digits than its factorization.

454340542 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 227170273.

The product of its (nonzero) digits is 38400, while the sum is 31.

The square root of 454340542 is about 21315.2654686729. The cubic root of 454340542 is about 768.7654033356.

Adding to 454340542 its reverse (245043454), we get a palindrome (699383996).

The spelling of 454340542 in words is "four hundred fifty-four million, three hundred forty thousand, five hundred forty-two".