1242572562 has 320 divisors, whose sum is σ = 3733475328. Its totient is φ = 299376000.

The previous prime is 1242572557. The next prime is 1242572563. The reversal of 1242572562 is 2652752421.

1242572562 is a `hidden beast` number, since 1 + 2 + 4 + 25 + 72 + 562 = 666.

It is not an unprimeable number, because it can be changed into a prime (1242572563) by changing a digit.

It is a polite number, since it can be written in 159 ways as a sum of consecutive naturals, for example, 17500987 + ... + 17501057.

Almost surely, 2^1242572562 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1242572562, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1866737664).

1242572562 is an abundant number, since it is smaller than the sum of its proper divisors (2490902766).

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

1242572562 is a wasteful number, since it uses less digits than its factorization.

1242572562 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 187 (or 178 counting only the distinct ones).

The product of its digits is 67200, while the sum is 36.

The square root of 1242572562 is about 35250.1427231153. The cubic root of 1242572562 is about 1075.0795144357.

The spelling of 1242572562 in words is "one billion, two hundred forty-two million, five hundred seventy-two thousand, five hundred sixty-two".