1242013432 has 64 divisors (see below), whose sum is σ = 2790547200. Its totient is φ = 511568640.

The previous prime is 1242013429. The next prime is 1242013433. The reversal of 1242013432 is 2343102421.

It is a Harshad number since it is a multiple of its sum of digits (22).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1242013433) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 22308 + ... + 54604.

It is an arithmetic number, because the mean of its divisors is an integer number (43602300).

Almost surely, 2^1242013432 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1242013432, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1395273600).

1242013432 is an abundant number, since it is smaller than the sum of its proper divisors (1548533768).

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

1242013432 is a wasteful number, since it uses less digits than its factorization.

1242013432 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 32356 (or 32352 counting only the distinct ones).

The product of its (nonzero) digits is 1152, while the sum is 22.

The square root of 1242013432 is about 35242.2109408590. The cubic root of 1242013432 is about 1074.9182362907.

Adding to 1242013432 its reverse (2343102421), we get a palindrome (3585115853).

It can be divided in two parts, 12420 and 13432, that added together give a palindrome (25852).

The spelling of 1242013432 in words is "one billion, two hundred forty-two million, thirteen thousand, four hundred thirty-two".