42992069 has 2 divisors, whose sum is σ = 42992070. Its totient is φ = 42992068.

The previous prime is 42992051. The next prime is 42992087. The reversal of 42992069 is 96029924.

It is a balanced prime because it is at equal distance from previous prime (42992051) and next prime (42992087).

It can be written as a sum of positive squares in only one way, i.e., 29757025 + 13235044 = 5455^2 + 3638^2 .

It is a cyclic number.

It is not a de Polignac number, because 42992069 - 2²⁰ = 41943493 is a prime.

It is a super-2 number, since 2×42992069² = 3696635993801522, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (42992869) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 21496034 + 21496035.

It is an arithmetic number, because the mean of its divisors is an integer number (21496035).

Almost surely, 2^42992069 is an apocalyptic number.

It is an amenable number.

42992069 is a deficient number, since it is larger than the sum of its proper divisors (1).

42992069 is an equidigital number, since it uses as much as digits as its factorization.

42992069 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 69984, while the sum is 41.

The square root of 42992069 is about 6556.8337633343. The cubic root of 42992069 is about 350.3182656058.

The spelling of 42992069 in words is "forty-two million, nine hundred ninety-two thousand, sixty-nine".