1242200456 has 32 divisors (see below), whose sum is σ = 2670978240. Its totient is φ = 530547648.

The previous prime is 1242200447. The next prime is 1242200507. The reversal of 1242200456 is 6540022421.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 21446 + ... + 54261.

It is an arithmetic number, because the mean of its divisors is an integer number (83468070).

Almost surely, 2^1242200456 is an apocalyptic number.

It is an amenable number.

1242200456 is an abundant number, since it is smaller than the sum of its proper divisors (1428777784).

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

1242200456 is a wasteful number, since it uses less digits than its factorization.

1242200456 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 76013 (or 76009 counting only the distinct ones).

The product of its (nonzero) digits is 3840, while the sum is 26.

The square root of 1242200456 is about 35244.8642499868. The cubic root of 1242200456 is about 1074.9721877787.

Adding to 1242200456 its reverse (6540022421), we get a palindrome (7782222877).

The spelling of 1242200456 in words is "one billion, two hundred forty-two million, two hundred thousand, four hundred fifty-six".