42474407 has 2 divisors, whose sum is σ = 42474408. Its totient is φ = 42474406.

The previous prime is 42474403. The next prime is 42474427. The reversal of 42474407 is 70447424.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 42474407 - 2² = 42474403 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (42474403) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 21237203 + 21237204.

It is an arithmetic number, because the mean of its divisors is an integer number (21237204).

Almost surely, 2^42474407 is an apocalyptic number.

42474407 is a deficient number, since it is larger than the sum of its proper divisors (1).

42474407 is an equidigital number, since it uses as much as digits as its factorization.

42474407 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 25088, while the sum is 32.

The square root of 42474407 is about 6517.2392161098. The cubic root of 42474407 is about 348.9065384116.

The spelling of 42474407 in words is "forty-two million, four hundred seventy-four thousand, four hundred seven".