1242605532 has 48 divisors (see below), whose sum is σ = 3394444032. Its totient is φ = 346369920.

The previous prime is 1242605513. The next prime is 1242605579. The reversal of 1242605532 is 2355062421.

It is a self number, because there is not a number n which added to its sum of digits gives 1242605532.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 176958 + ... + 183845.

It is an arithmetic number, because the mean of its divisors is an integer number (70717584).

Almost surely, 2^1242605532 is an apocalyptic number.

1242605532 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

1242605532 is an abundant number, since it is smaller than the sum of its proper divisors (2151838500).

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

1242605532 is a wasteful number, since it uses less digits than its factorization.

1242605532 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 360858 (or 360856 counting only the distinct ones).

The product of its (nonzero) digits is 14400, while the sum is 30.

The square root of 1242605532 is about 35250.6103776942. The cubic root of 1242605532 is about 1075.0890229503.

Adding to 1242605532 its reverse (2355062421), we get a palindrome (3597667953).

The spelling of 1242605532 in words is "one billion, two hundred forty-two million, six hundred five thousand, five hundred thirty-two".