1242274036 has 24 divisors (see below), whose sum is σ = 2362223360. Its totient is φ = 569462400.

The previous prime is 1242274021. The next prime is 1242274037. The reversal of 1242274036 is 6304722421.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (31).

It is a junction number, because it is equal to n+sod(n) for n = 1242273989 and 1242274007.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1242274037) 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, 261285 + ... + 265996.

Almost surely, 2^1242274036 is an apocalyptic number.

It is an amenable number.

1242274036 is a deficient number, since it is larger than the sum of its proper divisors (1119949324).

1242274036 is a wasteful number, since it uses less digits than its factorization.

1242274036 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 527335 (or 527333 counting only the distinct ones).

The product of its (nonzero) digits is 16128, while the sum is 31.

The square root of 1242274036 is about 35245.9080745553. The cubic root of 1242274036 is about 1074.9934121825.

Adding to 1242274036 its reverse (6304722421), we get a palindrome (7546996457).

The spelling of 1242274036 in words is "one billion, two hundred forty-two million, two hundred seventy-four thousand, thirty-six".