42001415 has 4 divisors (see below), whose sum is σ = 50401704. Its totient is φ = 33601128.

The previous prime is 42001397. The next prime is 42001447. The reversal of 42001415 is 51410024.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-42001415 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 42001393 and 42001402.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4200137 + ... + 4200146.

It is an arithmetic number, because the mean of its divisors is an integer number (12600426).

Almost surely, 2^42001415 is an apocalyptic number.

42001415 is a deficient number, since it is larger than the sum of its proper divisors (8400289).

42001415 is an equidigital number, since it uses as much as digits as its factorization.

42001415 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8400288.

The product of its (nonzero) digits is 160, while the sum is 17.

The square root of 42001415 is about 6480.8498671085. The cubic root of 42001415 is about 347.6065680779.

Adding to 42001415 its reverse (51410024), we get a palindrome (93411439).

The spelling of 42001415 in words is "forty-two million, one thousand, four hundred fifteen".