42900433 has 2 divisors, whose sum is σ = 42900434. Its totient is φ = 42900432.

The previous prime is 42900413. The next prime is 42900449. The reversal of 42900433 is 33400924.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 28815424 + 14085009 = 5368^2 + 3753^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-42900433 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 42900398 and 42900407.

It is not a weakly prime, because it can be changed into another prime (42900413) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 21450216 + 21450217.

It is an arithmetic number, because the mean of its divisors is an integer number (21450217).

Almost surely, 2^42900433 is an apocalyptic number.

It is an amenable number.

42900433 is a deficient number, since it is larger than the sum of its proper divisors (1).

42900433 is an equidigital number, since it uses as much as digits as its factorization.

42900433 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2592, while the sum is 25.

The square root of 42900433 is about 6549.8422118399. The cubic root of 42900433 is about 350.0691917627.

The spelling of 42900433 in words is "forty-two million, nine hundred thousand, four hundred thirty-three".