42628273 has 2 divisors, whose sum is σ = 42628274. Its totient is φ = 42628272.

The previous prime is 42628259. The next prime is 42628303. The reversal of 42628273 is 37282624.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 27751824 + 14876449 = 5268^2 + 3857^2 .

It is a cyclic number.

It is not a de Polignac number, because 42628273 - 2²¹ = 40531121 is a prime.

It is not a weakly prime, because it can be changed into another prime (42628973) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 21314136 + 21314137.

It is an arithmetic number, because the mean of its divisors is an integer number (21314137).

Almost surely, 2^42628273 is an apocalyptic number.

It is an amenable number.

42628273 is a deficient number, since it is larger than the sum of its proper divisors (1).

42628273 is an equidigital number, since it uses as much as digits as its factorization.

42628273 is an evil number, because the sum of its binary digits is even.

The product of its digits is 32256, while the sum is 34.

The square root of 42628273 is about 6529.0330830836. The cubic root of 42628273 is about 349.3273420741.

The spelling of 42628273 in words is "forty-two million, six hundred twenty-eight thousand, two hundred seventy-three".