2040442452 has 144 divisors (see below), whose sum is σ = 5557493760. Its totient is φ = 629342784.

The previous prime is 2040442427. The next prime is 2040442499. The reversal of 2040442452 is 2542440402.

2040442452 is a `hidden beast` number, since 204 + 0 + 4 + 4 + 2 + 452 = 666.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 7209903 + ... + 7210185.

Almost surely, 2^2040442452 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 2040442452, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2778746880).

2040442452 is an abundant number, since it is smaller than the sum of its proper divisors (3517051308).

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

2040442452 is a wasteful number, since it uses less digits than its factorization.

2040442452 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 522 (or 517 counting only the distinct ones).

The product of its (nonzero) digits is 10240, while the sum is 27.

The square root of 2040442452 is about 45171.2569229593. The cubic root of 2040442452 is about 1268.3568250450.

Adding to 2040442452 its reverse (2542440402), we get a palindrome (4582882854).

The spelling of 2040442452 in words is "two billion, forty million, four hundred forty-two thousand, four hundred fifty-two".