1242400508 has 12 divisors (see below), whose sum is σ = 2187221232. Its totient is φ = 617480160.

The previous prime is 1242400459. The next prime is 1242400517. The reversal of 1242400508 is 8050042421.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 929273 + ... + 930608.

It is an arithmetic number, because the mean of its divisors is an integer number (182268436).

Almost surely, 2^1242400508 is an apocalyptic number.

It is an amenable number.

1242400508 is a deficient number, since it is larger than the sum of its proper divisors (944820724).

1242400508 is a wasteful number, since it uses less digits than its factorization.

1242400508 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1860052 (or 1860050 counting only the distinct ones).

The product of its (nonzero) digits is 2560, while the sum is 26.

The square root of 1242400508 is about 35247.7021662406. The cubic root of 1242400508 is about 1075.0298915070.

Adding to 1242400508 its reverse (8050042421), we get a palindrome (9292442929).

The spelling of 1242400508 in words is "one billion, two hundred forty-two million, four hundred thousand, five hundred eight".