42065401 has 4 divisors (see below), whose sum is σ = 48074752. Its totient is φ = 36056052.

The previous prime is 42065393. The next prime is 42065437. The reversal of 42065401 is 10456024.

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 42065401 - 2³ = 42065393 is a prime.

It is a super-2 number, since 2×42065401² = 3538995922581602, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (42065461) 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, 3004665 + ... + 3004678.

It is an arithmetic number, because the mean of its divisors is an integer number (12018688).

Almost surely, 2^42065401 is an apocalyptic number.

It is an amenable number.

42065401 is a deficient number, since it is larger than the sum of its proper divisors (6009351).

42065401 is an equidigital number, since it uses as much as digits as its factorization.

42065401 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6009350.

The product of its (nonzero) digits is 960, while the sum is 22.

The square root of 42065401 is about 6485.7845323446. The cubic root of 42065401 is about 347.7829960131.

The spelling of 42065401 in words is "forty-two million, sixty-five thousand, four hundred one".