1402404242 has 8 divisors (see below), whose sum is σ = 2103995196. Its totient is φ = 701072512.

The previous prime is 1402404197. The next prime is 1402404247. The reversal of 1402404242 is 2424042041.

It can be written as a sum of positive squares in 2 ways, for example, as 1374852241 + 27552001 = 37079^2 + 5249^2 .

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

It is not an unprimeable number, because it can be changed into a prime (1402404247) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 50663 + ... + 73290.

Almost surely, 2^1402404242 is an apocalyptic number.

1402404242 is a deficient number, since it is larger than the sum of its proper divisors (701590954).

1402404242 is a wasteful number, since it uses less digits than its factorization.

1402404242 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 129612.

The product of its (nonzero) digits is 2048, while the sum is 23.

The square root of 1402404242 is about 37448.6881212146. The cubic root of 1402404242 is about 1119.3289565520.

Adding to 1402404242 its reverse (2424042041), we get a palindrome (3826446283).

The spelling of 1402404242 in words is "one billion, four hundred two million, four hundred four thousand, two hundred forty-two".