1242054632 has 64 divisors (see below), whose sum is σ = 2884801920. Its totient is φ = 488187648.

The previous prime is 1242054599. The next prime is 1242054637. The reversal of 1242054632 is 2364502421.

It is a junction number, because it is equal to n+sod(n) for n = 1242054595 and 1242054604.

It is not an unprimeable number, because it can be changed into a prime (1242054637) 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, 108863 + ... + 119729.

It is an arithmetic number, because the mean of its divisors is an integer number (45075030).

Almost surely, 2^1242054632 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 1242054632, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1442400960).

1242054632 is an abundant number, since it is smaller than the sum of its proper divisors (1642747288).

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

1242054632 is a wasteful number, since it uses less digits than its factorization.

1242054632 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11050 (or 11046 counting only the distinct ones).

The product of its (nonzero) digits is 11520, while the sum is 29.

The square root of 1242054632 is about 35242.7954623353. The cubic root of 1242054632 is about 1074.9301218685.

The spelling of 1242054632 in words is "one billion, two hundred forty-two million, fifty-four thousand, six hundred thirty-two".