1420013402 has 4 divisors (see below), whose sum is σ = 2130020106. Its totient is φ = 710006700.

The previous prime is 1420013389. The next prime is 1420013429. The reversal of 1420013402 is 2043100241.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 1315585441 + 104427961 = 36271^2 + 10219^2 .

It is a super-2 number, since 2×1420013402² = 4032876123719227208, which contains 22 as substring.

It is an unprimeable number.

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 as a sum of consecutive naturals, namely, 355003349 + ... + 355003352.

Almost surely, 2^1420013402 is an apocalyptic number.

1420013402 is a deficient number, since it is larger than the sum of its proper divisors (710006704).

1420013402 is an equidigital number, since it uses as much as digits as its factorization.

1420013402 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 710006703.

The product of its (nonzero) digits is 192, while the sum is 17.

The square root of 1420013402 is about 37683.0651884902. The cubic root of 1420013402 is about 1123.9944006889.

Adding to 1420013402 its reverse (2043100241), we get a palindrome (3463113643).

The spelling of 1420013402 in words is "one billion, four hundred twenty million, thirteen thousand, four hundred two".