1436429381 has 2 divisors, whose sum is σ = 1436429382. Its totient is φ = 1436429380.

The previous prime is 1436429377. The next prime is 1436429387. The reversal of 1436429381 is 1839246341.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1256064481 + 180364900 = 35441^2 + 13430^2 .

It is a cyclic number.

It is not a de Polignac number, because 1436429381 - 2² = 1436429377 is a prime.

It is a super-2 number, since 2×1436429381² = 4126658733200086322, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1436429387) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 718214690 + 718214691.

It is an arithmetic number, because the mean of its divisors is an integer number (718214691).

Almost surely, 2^1436429381 is an apocalyptic number.

It is an amenable number.

1436429381 is a deficient number, since it is larger than the sum of its proper divisors (1).

1436429381 is an equidigital number, since it uses as much as digits as its factorization.

1436429381 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 124416, while the sum is 41.

The square root of 1436429381 is about 37900.2556851534. The cubic root of 1436429381 is about 1128.3091062762.

The spelling of 1436429381 in words is "one billion, four hundred thirty-six million, four hundred twenty-nine thousand, three hundred eighty-one".