1242402706 has 8 divisors (see below), whose sum is σ = 1863755964. Its totient is φ = 621150720.

The previous prime is 1242402697. The next prime is 1242402727. The reversal of 1242402706 is 6072042421.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 1147515625 + 94887081 = 33875^2 + 9741^2 .

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

It is a super-2 number, since 2×1242402706² = 3087128967752244872, which contains 22 as substring.

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, 26866 + ... + 56626.

Almost surely, 2^1242402706 is an apocalyptic number.

1242402706 is a deficient number, since it is larger than the sum of its proper divisors (621353258).

1242402706 is a wasteful number, since it uses less digits than its factorization.

1242402706 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 50636.

The product of its (nonzero) digits is 5376, while the sum is 28.

The square root of 1242402706 is about 35247.7333455642. The cubic root of 1242402706 is about 1075.0305254718.

The spelling of 1242402706 in words is "one billion, two hundred forty-two million, four hundred two thousand, seven hundred six".