1402464281 has 2 divisors, whose sum is σ = 1402464282. Its totient is φ = 1402464280.

The previous prime is 1402464263. The next prime is 1402464313. The reversal of 1402464281 is 1824642041.

It is an a-pointer prime, because the next prime (1402464313) can be obtained adding 1402464281 to its sum of digits (32).

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1074528400 + 327935881 = 32780^2 + 18109^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1402464281 is a prime.

It is a super-2 number, since 2×1402464281² = 3933812118961693922, which contains 22 as substring.

It is a Sophie Germain prime.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (1402464251) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 701232140 + 701232141.

It is an arithmetic number, because the mean of its divisors is an integer number (701232141).

Almost surely, 2^1402464281 is an apocalyptic number.

It is an amenable number.

1402464281 is a deficient number, since it is larger than the sum of its proper divisors (1).

1402464281 is an equidigital number, since it uses as much as digits as its factorization.

1402464281 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 12288, while the sum is 32.

The square root of 1402464281 is about 37449.4897295010. The cubic root of 1402464281 is about 1119.3449297002.

The spelling of 1402464281 in words is "one billion, four hundred two million, four hundred sixty-four thousand, two hundred eighty-one".