1402420052 has 24 divisors (see below), whose sum is σ = 2693786592. Its totient is φ = 633549600.

The previous prime is 1402420007. The next prime is 1402420057. The reversal of 1402420052 is 2500242041.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1402420057) by changing a digit.

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 in 7 ways as a sum of consecutive naturals, for example, 90599 + ... + 104942.

It is an arithmetic number, because the mean of its divisors is an integer number (112241108).

Almost surely, 2^1402420052 is an apocalyptic number.

It is an amenable number.

1402420052 is a deficient number, since it is larger than the sum of its proper divisors (1291366540).

1402420052 is a wasteful number, since it uses less digits than its factorization.

1402420052 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 195719 (or 195717 counting only the distinct ones).

The product of its (nonzero) digits is 640, while the sum is 20.

The square root of 1402420052 is about 37448.8992094561. The cubic root of 1402420052 is about 1119.3331627867. Note that the first 3 decimals are identical.

Adding to 1402420052 its reverse (2500242041), we get a palindrome (3902662093).

The spelling of 1402420052 in words is "one billion, four hundred two million, four hundred twenty thousand, fifty-two".