1242987702 has 16 divisors (see below), whose sum is σ = 2711973312. Its totient is φ = 376662920.

The previous prime is 1242987701. The next prime is 1242987703. The reversal of 1242987702 is 2077892421.

It is an interprime number because it is at equal distance from previous prime (1242987701) and next prime (1242987703).

It is a Smith number, since the sum of its digits (42) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1242987701) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 9416508 + ... + 9416639.

It is an arithmetic number, because the mean of its divisors is an integer number (169498332).

Almost surely, 2^1242987702 is an apocalyptic number.

1242987702 is an abundant number, since it is smaller than the sum of its proper divisors (1468985610).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1242987702 is a wasteful number, since it uses less digits than its factorization.

1242987702 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18833163.

The product of its (nonzero) digits is 112896, while the sum is 42.

The square root of 1242987702 is about 35256.0307181622. The cubic root of 1242987702 is about 1075.1992281192.

The spelling of 1242987702 in words is "one billion, two hundred forty-two million, nine hundred eighty-seven thousand, seven hundred two".