1402120442 has 8 divisors (see below), whose sum is σ = 2110359636. Its totient is φ = 698667232.

The previous prime is 1402120397. The next prime is 1402120451. The reversal of 1402120442 is 2440212041.

It can be written as a sum of positive squares in 2 ways, for example, as 1268000881 + 134119561 = 35609^2 + 11581^2 .

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, 1195763 + ... + 1196934.

Almost surely, 2^1402120442 is an apocalyptic number.

1402120442 is a deficient number, since it is larger than the sum of its proper divisors (708239194).

1402120442 is a wasteful number, since it uses less digits than its factorization.

1402120442 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2392992.

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

The square root of 1402120442 is about 37444.8987446888. The cubic root of 1402120442 is about 1119.2534464675.

Adding to 1402120442 its reverse (2440212041), we get a palindrome (3842332483).

The spelling of 1402120442 in words is "one billion, four hundred two million, one hundred twenty thousand, four hundred forty-two".