1242436497 has 8 divisors (see below), whose sum is σ = 1658162400. Its totient is φ = 827500800.

The previous prime is 1242436477. The next prime is 1242436499. The reversal of 1242436497 is 7946342421.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 1242436497 - 2²² = 1238242193 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1242436499) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 193872 + ... + 200177.

It is an arithmetic number, because the mean of its divisors is an integer number (207270300).

Almost surely, 2^1242436497 is an apocalyptic number.

It is an amenable number.

1242436497 is a deficient number, since it is larger than the sum of its proper divisors (415725903).

1242436497 is a wasteful number, since it uses less digits than its factorization.

1242436497 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 395103.

The product of its digits is 290304, while the sum is 42.

The square root of 1242436497 is about 35248.2126780919. The cubic root of 1242436497 is about 1075.0402716480.

The spelling of 1242436497 in words is "one billion, two hundred forty-two million, four hundred thirty-six thousand, four hundred ninety-seven".