1242264012 has 24 divisors (see below), whose sum is σ = 3162126912. Its totient is φ = 376443600.

The previous prime is 1242263983. The next prime is 1242264013. The reversal of 1242264012 is 2104622421.

It is a happy number.

It is a super-2 number, since 2×1242264012² = 3086439751020672288, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (1242264013) 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, 4705414 + ... + 4705677.

It is an arithmetic number, because the mean of its divisors is an integer number (131755288).

Almost surely, 2^1242264012 is an apocalyptic number.

1242264012 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

1242264012 is an abundant number, since it is smaller than the sum of its proper divisors (1919862900).

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

1242264012 is a wasteful number, since it uses less digits than its factorization.

1242264012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9411109 (or 9411107 counting only the distinct ones).

The product of its (nonzero) digits is 1536, while the sum is 24.

The square root of 1242264012 is about 35245.7658733641. The cubic root of 1242264012 is about 1074.9905207745.

Adding to 1242264012 its reverse (2104622421), we get a palindrome (3346886433).

The spelling of 1242264012 in words is "one billion, two hundred forty-two million, two hundred sixty-four thousand, twelve".