1423442402 has 8 divisors (see below), whose sum is σ = 2260761516. Its totient is φ = 669855232.

The previous prime is 1423442393. The next prime is 1423442417. The reversal of 1423442402 is 2042443241.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 1312540441 + 110901961 = 36229^2 + 10531^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 20932943 + ... + 20933010.

Almost surely, 2^1423442402 is an apocalyptic number.

1423442402 is a deficient number, since it is larger than the sum of its proper divisors (837319114).

1423442402 is a wasteful number, since it uses less digits than its factorization.

1423442402 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 41865972.

The product of its (nonzero) digits is 6144, while the sum is 26.

The square root of 1423442402 is about 37728.5356461127. The cubic root of 1423442402 is about 1124.8984012282.

Adding to 1423442402 its reverse (2042443241), we get a palindrome (3465885643).

The spelling of 1423442402 in words is "one billion, four hundred twenty-three million, four hundred forty-two thousand, four hundred two".