1242697392 has 60 divisors (see below), whose sum is σ = 3571837360. Its totient is φ = 403035264.

The previous prime is 1242697387. The next prime is 1242697409. The reversal of 1242697392 is 2937962421.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 111292 + ... + 121947.

Almost surely, 2^1242697392 is an apocalyptic number.

1242697392 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

1242697392 is an abundant number, since it is smaller than the sum of its proper divisors (2329139968).

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

1242697392 is a wasteful number, since it uses less digits than its factorization.

1242697392 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 233290 (or 233281 counting only the distinct ones).

The product of its digits is 326592, while the sum is 45.

The square root of 1242697392 is about 35251.9133097765. The cubic root of 1242697392 is about 1075.1155143942.

The spelling of 1242697392 in words is "one billion, two hundred forty-two million, six hundred ninety-seven thousand, three hundred ninety-two".