42462709 has 2 divisors, whose sum is σ = 42462710. Its totient is φ = 42462708.

The previous prime is 42462689. The next prime is 42462727. The reversal of 42462709 is 90726424.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 30580900 + 11881809 = 5530^2 + 3447^2 .

It is a cyclic number.

It is not a de Polignac number, because 42462709 - 2¹⁵ = 42429941 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (42462779) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 21231354 + 21231355.

It is an arithmetic number, because the mean of its divisors is an integer number (21231355).

Almost surely, 2^42462709 is an apocalyptic number.

It is an amenable number.

42462709 is a deficient number, since it is larger than the sum of its proper divisors (1).

42462709 is an equidigital number, since it uses as much as digits as its factorization.

42462709 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 24192, while the sum is 34.

The square root of 42462709 is about 6516.3416884016. The cubic root of 42462709 is about 348.8745043489.

The spelling of 42462709 in words is "forty-two million, four hundred sixty-two thousand, seven hundred nine".