42036454 has 4 divisors (see below), whose sum is σ = 63054684. Its totient is φ = 21018226.

The previous prime is 42036443. The next prime is 42036469. The reversal of 42036454 is 45463024.

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

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, 10509112 + ... + 10509115.

It is an arithmetic number, because the mean of its divisors is an integer number (15763671).

Almost surely, 2^42036454 is an apocalyptic number.

42036454 is a deficient number, since it is larger than the sum of its proper divisors (21018230).

42036454 is a wasteful number, since it uses less digits than its factorization.

42036454 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21018229.

The product of its (nonzero) digits is 11520, while the sum is 28.

The square root of 42036454 is about 6483.5525755561. The cubic root of 42036454 is about 347.7032029268.

Adding to 42036454 its reverse (45463024), we get a palindrome (87499478).

The spelling of 42036454 in words is "forty-two million, thirty-six thousand, four hundred fifty-four".