1400421241 has 2 divisors, whose sum is σ = 1400421242. Its totient is φ = 1400421240.

The previous prime is 1400421221. The next prime is 1400421283. The reversal of 1400421241 is 1421240041.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1400331241 + 90000 = 37421^2 + 300^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1400421241 is a prime.

It is a super-2 number, since 2×1400421241² = 3922359304487960162, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (1400421221) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 700210620 + 700210621.

It is an arithmetic number, because the mean of its divisors is an integer number (700210621).

Almost surely, 2^1400421241 is an apocalyptic number.

It is an amenable number.

1400421241 is a deficient number, since it is larger than the sum of its proper divisors (1).

1400421241 is an equidigital number, since it uses as much as digits as its factorization.

1400421241 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 256, while the sum is 19.

The square root of 1400421241 is about 37422.2025140157. The cubic root of 1400421241 is about 1118.8011302703.

Adding to 1400421241 its reverse (1421240041), we get a palindrome (2821661282).

It can be divided in two parts, 14004 and 21241, that added together give a triangular number (35245 = T₂₆₅).

The spelling of 1400421241 in words is "one billion, four hundred million, four hundred twenty-one thousand, two hundred forty-one".