1242476885 has 16 divisors (see below), whose sum is σ = 1606397184. Its totient is φ = 917101632.

The previous prime is 1242476881. The next prime is 1242476903. The reversal of 1242476885 is 5886742421.

It is a cyclic number.

It is not a de Polignac number, because 1242476885 - 2² = 1242476881 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1242476881) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 276164 + ... + 280626.

It is an arithmetic number, because the mean of its divisors is an integer number (100399824).

Almost surely, 2^1242476885 is an apocalyptic number.

It is an amenable number.

1242476885 is a deficient number, since it is larger than the sum of its proper divisors (363920299).

1242476885 is a wasteful number, since it uses less digits than its factorization.

1242476885 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8764.

The product of its digits is 860160, while the sum is 47.

The square root of 1242476885 is about 35248.7855819176. The cubic root of 1242476885 is about 1075.0519203335.

The spelling of 1242476885 in words is "one billion, two hundred forty-two million, four hundred seventy-six thousand, eight hundred eighty-five".