42505414 has 16 divisors (see below), whose sum is σ = 74562048. Its totient is φ = 17792712.

The previous prime is 42505381. The next prime is 42505427. The reversal of 42505414 is 41450524.

It is a happy number.

It is a super-2 number, since 2×42505414² = 3613420438622792, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 34702 + ... + 35905.

It is an arithmetic number, because the mean of its divisors is an integer number (4660128).

Almost surely, 2^42505414 is an apocalyptic number.

42505414 is a deficient number, since it is larger than the sum of its proper divisors (32056634).

42505414 is a wasteful number, since it uses less digits than its factorization.

42505414 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 70659.

The product of its (nonzero) digits is 3200, while the sum is 25.

The square root of 42505414 is about 6519.6176268244. The cubic root of 42505414 is about 348.9914202208.

Adding to 42505414 its reverse (41450524), we get a palindrome (83955938).

The spelling of 42505414 in words is "forty-two million, five hundred five thousand, four hundred fourteen".