42513406 has 16 divisors (see below), whose sum is σ = 68935104. Its totient is φ = 19547424.

The previous prime is 42513397. The next prime is 42513463. The reversal of 42513406 is 60431524.

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, 4251 + ... + 10153.

It is an arithmetic number, because the mean of its divisors is an integer number (4308444).

Almost surely, 2^42513406 is an apocalyptic number.

42513406 is a deficient number, since it is larger than the sum of its proper divisors (26421698).

42513406 is a wasteful number, since it uses less digits than its factorization.

42513406 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6195.

The product of its (nonzero) digits is 2880, while the sum is 25.

The square root of 42513406 is about 6520.2305173974. The cubic root of 42513406 is about 349.0132916671.

It can be divided in two parts, 425 and 13406, that added together give a palindrome (13831).

The spelling of 42513406 in words is "forty-two million, five hundred thirteen thousand, four hundred six".