42401479 has 2 divisors, whose sum is σ = 42401480. Its totient is φ = 42401478.

The previous prime is 42401449. The next prime is 42401501. The reversal of 42401479 is 97410424.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 42401479 - 2¹⁷ = 42270407 is a prime.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 42401479.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (42401449) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 21200739 + 21200740.

It is an arithmetic number, because the mean of its divisors is an integer number (21200740).

Almost surely, 2^42401479 is an apocalyptic number.

42401479 is a deficient number, since it is larger than the sum of its proper divisors (1).

42401479 is an equidigital number, since it uses as much as digits as its factorization.

42401479 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 8064, while the sum is 31.

The square root of 42401479 is about 6511.6418052593. The cubic root of 42401479 is about 348.7067346970.

The spelling of 42401479 in words is "forty-two million, four hundred one thousand, four hundred seventy-nine".