40222031389 has 2 divisors, whose sum is σ = 40222031390. Its totient is φ = 40222031388.

The previous prime is 40222031309. The next prime is 40222031401. The reversal of 40222031389 is 98313022204.

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., 38983343364 + 1238688025 = 197442^2 + 35195^2 .

It is a cyclic number.

It is not a de Polignac number, because 40222031389 - 2³¹ = 38074547741 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (40222031309) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 20111015694 + 20111015695.

It is an arithmetic number, because the mean of its divisors is an integer number (20111015695).

Almost surely, 2^40222031389 is an apocalyptic number.

It is an amenable number.

40222031389 is a deficient number, since it is larger than the sum of its proper divisors (1).

40222031389 is an equidigital number, since it uses as much as digits as its factorization.

40222031389 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 20736, while the sum is 34.

The spelling of 40222031389 in words is "forty billion, two hundred twenty-two million, thirty-one thousand, three hundred eighty-nine".