416231381 has 2 divisors, whose sum is σ = 416231382. Its totient is φ = 416231380.

The previous prime is 416231377. The next prime is 416231411. The reversal of 416231381 is 183132614.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 407434225 + 8797156 = 20185^2 + 2966^2 .

It is a cyclic number.

It is not a de Polignac number, because 416231381 - 2² = 416231377 is a prime.

It is a super-2 number, since 2×416231381² = 346497125058334322, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (416231311) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 208115690 + 208115691.

It is an arithmetic number, because the mean of its divisors is an integer number (208115691).

Almost surely, 2^416231381 is an apocalyptic number.

It is an amenable number.

416231381 is a deficient number, since it is larger than the sum of its proper divisors (1).

416231381 is an equidigital number, since it uses as much as digits as its factorization.

416231381 is an evil number, because the sum of its binary digits is even.

The product of its digits is 3456, while the sum is 29.

The square root of 416231381 is about 20401.7494592988. The cubic root of 416231381 is about 746.6406083017.

Adding to 416231381 its reverse (183132614), we get a palindrome (599363995).

The spelling of 416231381 in words is "four hundred sixteen million, two hundred thirty-one thousand, three hundred eighty-one".