1421502252 has 24 divisors (see below), whose sum is σ = 3491409600. Its totient is φ = 448895376.

The previous prime is 1421502211. The next prime is 1421502253. The reversal of 1421502252 is 2522051241.

It is not an unprimeable number, because it can be changed into a prime (1421502253) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3117102 + ... + 3117557.

It is an arithmetic number, because the mean of its divisors is an integer number (145475400).

Almost surely, 2^1421502252 is an apocalyptic number.

1421502252 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

1421502252 is an abundant number, since it is smaller than the sum of its proper divisors (2069907348).

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

1421502252 is a wasteful number, since it uses less digits than its factorization.

1421502252 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6234685 (or 6234683 counting only the distinct ones).

The product of its (nonzero) digits is 1600, while the sum is 24.

The square root of 1421502252 is about 37702.8149081736. The cubic root of 1421502252 is about 1124.3870905375.

Adding to 1421502252 its reverse (2522051241), we get a palindrome (3943553493).

The spelling of 1421502252 in words is "one billion, four hundred twenty-one million, five hundred two thousand, two hundred fifty-two".