1242018588 has 24 divisors (see below), whose sum is σ = 2900078608. Its totient is φ = 413715456.

The previous prime is 1242018587. The next prime is 1242018593. The reversal of 1242018588 is 8858102421.

It is a super-2 number, since 2×1242018588² = 3085220345875027488, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1242018587) 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, 18181 + ... + 53052.

Almost surely, 2^1242018588 is an apocalyptic number.

It is an amenable number.

1242018588 is an abundant number, since it is smaller than the sum of its proper divisors (1658060020).

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

1242018588 is a wasteful number, since it uses less digits than its factorization.

1242018588 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 72693 (or 72691 counting only the distinct ones).

The product of its (nonzero) digits is 40960, while the sum is 39.

The square root of 1242018588 is about 35242.2840916987. The cubic root of 1242018588 is about 1074.9197237333.

The spelling of 1242018588 in words is "one billion, two hundred forty-two million, eighteen thousand, five hundred eighty-eight".