42023451 has 8 divisors (see below), whose sum is σ = 56402944. Its totient is φ = 27829800.

The previous prime is 42023447. The next prime is 42023467. The reversal of 42023451 is 15432024.

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

It is not a de Polignac number, because 42023451 - 2² = 42023447 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (42023431) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 45931 + ... + 46836.

It is an arithmetic number, because the mean of its divisors is an integer number (7050368).

Almost surely, 2^42023451 is an apocalyptic number.

42023451 is a deficient number, since it is larger than the sum of its proper divisors (14379493).

42023451 is a wasteful number, since it uses less digits than its factorization.

42023451 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 92921.

The product of its (nonzero) digits is 960, while the sum is 21.

The square root of 42023451 is about 6482.5497298517. The cubic root of 42023451 is about 347.6673479282.

Adding to 42023451 its reverse (15432024), we get a palindrome (57455475).

It can be divided in two parts, 420 and 23451, that added together give a triangular number (23871 = T₂₁₈).

The spelling of 42023451 in words is "forty-two million, twenty-three thousand, four hundred fifty-one".