42246431 has 8 divisors (see below), whose sum is σ = 42910560. Its totient is φ = 41586688.

The previous prime is 42246403. The next prime is 42246433. The reversal of 42246431 is 13464224.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 42246431 - 2²² = 38052127 is a prime.

It is a super-2 number, since 2×42246431² = 3569521864475522, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 42246431.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42246433) 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 7 ways as a sum of consecutive naturals, for example, 21950 + ... + 23796.

It is an arithmetic number, because the mean of its divisors is an integer number (5363820).

Almost surely, 2^42246431 is an apocalyptic number.

42246431 is a deficient number, since it is larger than the sum of its proper divisors (664129).

42246431 is a wasteful number, since it uses less digits than its factorization.

42246431 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2193.

The product of its digits is 4608, while the sum is 26.

The square root of 42246431 is about 6499.7254557404. The cubic root of 42246431 is about 348.2811810131.

The spelling of 42246431 in words is "forty-two million, two hundred forty-six thousand, four hundred thirty-one".