1242430320 has 160 divisors (see below), whose sum is σ = 3944247552. Its totient is φ = 323444736.

The previous prime is 1242430309. The next prime is 1242430337. The reversal of 1242430320 is 230342421.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1931919 + ... + 1932561.

Almost surely, 2^1242430320 is an apocalyptic number.

1242430320 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1242430320, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1972123776).

1242430320 is an abundant number, since it is smaller than the sum of its proper divisors (2701817232).

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

1242430320 is a wasteful number, since it uses less digits than its factorization.

1242430320 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 839 (or 833 counting only the distinct ones).

The product of its (nonzero) digits is 1152, while the sum is 21.

The square root of 1242430320 is about 35248.1250565190. The cubic root of 1242430320 is about 1075.0384900587.

Adding to 1242430320 its reverse (230342421), we get a palindrome (1472772741).

The spelling of 1242430320 in words is "one billion, two hundred forty-two million, four hundred thirty thousand, three hundred twenty".