42036447 has 4 divisors (see below), whose sum is σ = 56048600. Its totient is φ = 28024296.

The previous prime is 42036443. The next prime is 42036469. The reversal of 42036447 is 74463024.

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

It is not a de Polignac number, because 42036447 - 2² = 42036443 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42036443) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7006072 + ... + 7006077.

It is an arithmetic number, because the mean of its divisors is an integer number (14012150).

Almost surely, 2^42036447 is an apocalyptic number.

42036447 is a deficient number, since it is larger than the sum of its proper divisors (14012153).

42036447 is a wasteful number, since it uses less digits than its factorization.

42036447 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14012152.

The product of its (nonzero) digits is 16128, while the sum is 30.

The square root of 42036447 is about 6483.5520357286. The cubic root of 42036447 is about 347.7031836267.

The spelling of 42036447 in words is "forty-two million, thirty-six thousand, four hundred forty-seven".