1502122420 has 24 divisors (see below), whose sum is σ = 3189904200. Its totient is φ = 594097152.

The previous prime is 1502122403. The next prime is 1502122423. The reversal of 1502122420 is 242212051.

It can be written as a sum of positive squares in 4 ways, for example, as 8145316 + 1493977104 = 2854^2 + 38652^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1502122423) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 420165 + ... + 423724.

It is an arithmetic number, because the mean of its divisors is an integer number (132912675).

Almost surely, 2^1502122420 is an apocalyptic number.

1502122420 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1502122420 is an abundant number, since it is smaller than the sum of its proper divisors (1687781780).

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

1502122420 is a wasteful number, since it uses less digits than its factorization.

1502122420 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 843987 (or 843985 counting only the distinct ones).

The product of its (nonzero) digits is 320, while the sum is 19.

The square root of 1502122420 is about 38757.2241008047. The cubic root of 1502122420 is about 1145.2538913092.

Adding to 1502122420 its reverse (242212051), we get a palindrome (1744334471).

The spelling of 1502122420 in words is "one billion, five hundred two million, one hundred twenty-two thousand, four hundred twenty".