1242022452 has 96 divisors (see below), whose sum is σ = 3248985600. Its totient is φ = 366096000.

The previous prime is 1242022433. The next prime is 1242022493. The reversal of 1242022452 is 2542202421.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 785799 + ... + 787377.

It is an arithmetic number, because the mean of its divisors is an integer number (33843600).

Almost surely, 2^1242022452 is an apocalyptic number.

1242022452 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1242022452, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1624492800).

1242022452 is an abundant number, since it is smaller than the sum of its proper divisors (2006963148).

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

1242022452 is a wasteful number, since it uses less digits than its factorization.

1242022452 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1757 (or 1755 counting only the distinct ones).

The product of its (nonzero) digits is 2560, while the sum is 24.

The square root of 1242022452 is about 35242.3389121664. The cubic root of 1242022452 is about 1074.9208384470.

Adding to 1242022452 its reverse (2542202421), we get a palindrome (3784224873).

The spelling of 1242022452 in words is "one billion, two hundred forty-two million, twenty-two thousand, four hundred fifty-two".