1402881889 has 2 divisors, whose sum is σ = 1402881890. Its totient is φ = 1402881888.

The previous prime is 1402881859. The next prime is 1402881911. The reversal of 1402881889 is 9881882041.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1228853025 + 174028864 = 35055^2 + 13192^2 .

It is a cyclic number.

It is not a de Polignac number, because 1402881889 - 2¹³ = 1402873697 is a prime.

It is not a weakly prime, because it can be changed into another prime (1402881859) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 701440944 + 701440945.

It is an arithmetic number, because the mean of its divisors is an integer number (701440945).

Almost surely, 2^1402881889 is an apocalyptic number.

It is an amenable number.

1402881889 is a deficient number, since it is larger than the sum of its proper divisors (1).

1402881889 is an equidigital number, since it uses as much as digits as its factorization.

1402881889 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 294912, while the sum is 49.

The square root of 1402881889 is about 37455.0649311946. The cubic root of 1402881889 is about 1119.4560201131.

The spelling of 1402881889 in words is "one billion, four hundred two million, eight hundred eighty-one thousand, eight hundred eighty-nine".