42620413 has 4 divisors (see below), whose sum is σ = 46495008. Its totient is φ = 38745820.

The previous prime is 42620387. The next prime is 42620419. The reversal of 42620413 is 31402624.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 42620413 - 2²¹ = 40523261 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 (42620419) 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, 1937281 + ... + 1937302.

It is an arithmetic number, because the mean of its divisors is an integer number (11623752).

Almost surely, 2^42620413 is an apocalyptic number.

It is an amenable number.

42620413 is a deficient number, since it is larger than the sum of its proper divisors (3874595).

42620413 is a wasteful number, since it uses less digits than its factorization.

42620413 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3874594.

The product of its (nonzero) digits is 1152, while the sum is 22.

The square root of 42620413 is about 6528.4311285331. The cubic root of 42620413 is about 349.3058705523.

The spelling of 42620413 in words is "forty-two million, six hundred twenty thousand, four hundred thirteen".