1242673276 has 48 divisors (see below), whose sum is σ = 2484911520. Its totient is φ = 538675200.

The previous prime is 1242673249. The next prime is 1242673291. The reversal of 1242673276 is 6723762421.

It is a happy number.

It is a Smith number, since the sum of its digits (40) coincides with the sum of the digits of its prime factors.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 530115 + ... + 532453.

It is an arithmetic number, because the mean of its divisors is an integer number (51768990).

Almost surely, 2^1242673276 is an apocalyptic number.

It is an amenable number.

1242673276 is a deficient number, since it is larger than the sum of its proper divisors (1242238244).

1242673276 is a wasteful number, since it uses less digits than its factorization.

1242673276 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2974 (or 2972 counting only the distinct ones).

The product of its digits is 169344, while the sum is 40.

The square root of 1242673276 is about 35251.5712557611. The cubic root of 1242673276 is about 1075.1085597235.

The spelling of 1242673276 in words is "one billion, two hundred forty-two million, six hundred seventy-three thousand, two hundred seventy-six".