1214402402 has 4 divisors (see below), whose sum is σ = 1821603606. Its totient is φ = 607201200.

The previous prime is 1214402393. The next prime is 1214402447. The reversal of 1214402402 is 2042044121.

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., 1027779481 + 186622921 = 32059^2 + 13661^2 .

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 as a sum of consecutive naturals, namely, 303600599 + ... + 303600602.

Almost surely, 2^1214402402 is an apocalyptic number.

1214402402 is a deficient number, since it is larger than the sum of its proper divisors (607201204).

1214402402 is an equidigital number, since it uses as much as digits as its factorization.

1214402402 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 607201203.

The product of its (nonzero) digits is 512, while the sum is 20.

The square root of 1214402402 is about 34848.2768871002. The cubic root of 1214402402 is about 1066.8930167864.

Adding to 1214402402 its reverse (2042044121), we get a palindrome (3256446523).

The spelling of 1214402402 in words is "one billion, two hundred fourteen million, four hundred two thousand, four hundred two".