42059421 has 12 divisors (see below), whose sum is σ = 60888672. Its totient is φ = 27976776.

The previous prime is 42059419. The next prime is 42059443. The reversal of 42059421 is 12495024.

It is not a de Polignac number, because 42059421 - 2¹ = 42059419 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42059401) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 801 + ... + 9206.

It is an arithmetic number, because the mean of its divisors is an integer number (5074056).

Almost surely, 2^42059421 is an apocalyptic number.

It is an amenable number.

42059421 is a deficient number, since it is larger than the sum of its proper divisors (18829251).

42059421 is a wasteful number, since it uses less digits than its factorization.

42059421 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10480 (or 10477 counting only the distinct ones).

The product of its (nonzero) digits is 2880, while the sum is 27.

The square root of 42059421 is about 6485.3235077365. The cubic root of 42059421 is about 347.7665150031.

The spelling of 42059421 in words is "forty-two million, fifty-nine thousand, four hundred twenty-one".