436389049 has 2 divisors, whose sum is σ = 436389050. Its totient is φ = 436389048.

The previous prime is 436389047. The next prime is 436389067. The reversal of 436389049 is 940983634.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 237776400 + 198612649 = 15420^2 + 14093^2 .

It is a cyclic number.

It is not a de Polignac number, because 436389049 - 2¹ = 436389047 is a prime.

Together with 436389047, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (436389043) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 218194524 + 218194525.

It is an arithmetic number, because the mean of its divisors is an integer number (218194525).

Almost surely, 2^436389049 is an apocalyptic number.

It is an amenable number.

436389049 is a deficient number, since it is larger than the sum of its proper divisors (1).

436389049 is an equidigital number, since it uses as much as digits as its factorization.

436389049 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 559872, while the sum is 46.

The square root of 436389049 is about 20889.9269745014. The cubic root of 436389049 is about 758.5041265779.

The spelling of 436389049 in words is "four hundred thirty-six million, three hundred eighty-nine thousand, forty-nine".