40302201389 has 2 divisors, whose sum is σ = 40302201390. Its totient is φ = 40302201388.

The previous prime is 40302201343. The next prime is 40302201391. The reversal of 40302201389 is 98310220304.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 40108072900 + 194128489 = 200270^2 + 13933^2 .

It is a cyclic number.

It is not a de Polignac number, because 40302201389 - 2¹² = 40302197293 is a prime.

Together with 40302201391, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (40302201089) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 20151100694 + 20151100695.

It is an arithmetic number, because the mean of its divisors is an integer number (20151100695).

Almost surely, 2^40302201389 is an apocalyptic number.

It is an amenable number.

40302201389 is a deficient number, since it is larger than the sum of its proper divisors (1).

40302201389 is an equidigital number, since it uses as much as digits as its factorization.

40302201389 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 10368, while the sum is 32.

The spelling of 40302201389 in words is "forty billion, three hundred two million, two hundred one thousand, three hundred eighty-nine".