42247401 has 16 divisors (see below), whose sum is σ = 64742400. Its totient is φ = 24004368.

The previous prime is 42247379. The next prime is 42247409. The reversal of 42247401 is 10474224.

It is not a de Polignac number, because 42247401 - 2⁷ = 42247273 is a prime.

It is not an unprimeable number, because it can be changed into a prime (42247409) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1861 + ... + 9378.

It is an arithmetic number, because the mean of its divisors is an integer number (4046400).

Almost surely, 2^42247401 is an apocalyptic number.

It is an amenable number.

42247401 is a deficient number, since it is larger than the sum of its proper divisors (22494999).

42247401 is a wasteful number, since it uses less digits than its factorization.

42247401 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11428.

The product of its (nonzero) digits is 1792, while the sum is 24.

The square root of 42247401 is about 6499.8000738484. The cubic root of 42247401 is about 348.2838465650.

The spelling of 42247401 in words is "forty-two million, two hundred forty-seven thousand, four hundred one".