1420001402 has 16 divisors (see below), whose sum is σ = 2168193192. Its totient is φ = 697351680.

The previous prime is 1420001399. The next prime is 1420001419. The reversal of 1420001402 is 2041000241.

It can be written as a sum of positive squares in 4 ways, for example, as 1055535121 + 364466281 = 32489^2 + 19091^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 15008 + ... + 55364.

Almost surely, 2^1420001402 is an apocalyptic number.

1420001402 is a deficient number, since it is larger than the sum of its proper divisors (748191790).

1420001402 is a wasteful number, since it uses less digits than its factorization.

1420001402 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 40673.

The product of its (nonzero) digits is 64, while the sum is 14.

The square root of 1420001402 is about 37682.9059654374. The cubic root of 1420001402 is about 1123.9912345285.

Adding to 1420001402 its reverse (2041000241), we get a palindrome (3461001643).

The spelling of 1420001402 in words is "one billion, four hundred twenty million, one thousand, four hundred two".