42402307 has 2 divisors, whose sum is σ = 42402308. Its totient is φ = 42402306.

The previous prime is 42402299. The next prime is 42402377. The reversal of 42402307 is 70320424.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 42402307 - 2³ = 42402299 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (42402377) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 21201153 + 21201154.

It is an arithmetic number, because the mean of its divisors is an integer number (21201154).

Almost surely, 2^42402307 is an apocalyptic number.

42402307 is a deficient number, since it is larger than the sum of its proper divisors (1).

42402307 is an equidigital number, since it uses as much as digits as its factorization.

42402307 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1344, while the sum is 22.

The square root of 42402307 is about 6511.7053833846. The cubic root of 42402307 is about 348.7090044865.

The spelling of 42402307 in words is "forty-two million, four hundred two thousand, three hundred seven".