1242438474 has 64 divisors (see below), whose sum is σ = 2646167040. Its totient is φ = 388221120.

The previous prime is 1242438433. The next prime is 1242438499. The reversal of 1242438474 is 4748342421.

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 31 ways as a sum of consecutive naturals, for example, 1578309 + ... + 1579095.

It is an arithmetic number, because the mean of its divisors is an integer number (41346360).

Almost surely, 2^1242438474 is an apocalyptic number.

1242438474 is an abundant number, since it is smaller than the sum of its proper divisors (1403728566).

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

1242438474 is a wasteful number, since it uses less digits than its factorization.

1242438474 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1075.

The product of its digits is 172032, while the sum is 39.

The square root of 1242438474 is about 35248.2407220559. The cubic root of 1242438474 is about 1075.0408418592.

The spelling of 1242438474 in words is "one billion, two hundred forty-two million, four hundred thirty-eight thousand, four hundred seventy-four".