1420274231 has 16 divisors (see below), whose sum is σ = 1536405408. Its totient is φ = 1307904000.

The previous prime is 1420274227. The next prime is 1420274243. The reversal of 1420274231 is 1324720241.

It is a cyclic number.

It is not a de Polignac number, because 1420274231 - 2² = 1420274227 is a prime.

It is a super-2 number, since 2×1420274231² = 4034357782485282722, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 1420274231.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1420274201) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 359336 + ... + 363266.

It is an arithmetic number, because the mean of its divisors is an integer number (96025338).

Almost surely, 2^1420274231 is an apocalyptic number.

1420274231 is a deficient number, since it is larger than the sum of its proper divisors (116131177).

1420274231 is a wasteful number, since it uses less digits than its factorization.

1420274231 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4402.

The product of its (nonzero) digits is 2688, while the sum is 26.

The square root of 1420274231 is about 37686.5258547402. The cubic root of 1420274231 is about 1124.0632151539.

Adding to 1420274231 its reverse (1324720241), we get a palindrome (2744994472).

The spelling of 1420274231 in words is "one billion, four hundred twenty million, two hundred seventy-four thousand, two hundred thirty-one".