1505422428 has 12 divisors (see below), whose sum is σ = 3512652360. Its totient is φ = 501807472.

The previous prime is 1505422409. The next prime is 1505422447. The reversal of 1505422428 is 8242245051.

It is an interprime number because it is at equal distance from previous prime (1505422409) and next prime (1505422447).

It is a tau number, because it is divible by the number of its divisors (12).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 62725923 + ... + 62725946.

It is an arithmetic number, because the mean of its divisors is an integer number (292721030).

Almost surely, 2^1505422428 is an apocalyptic number.

It is an amenable number.

1505422428 is an abundant number, since it is smaller than the sum of its proper divisors (2007229932).

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

1505422428 is a wasteful number, since it uses less digits than its factorization.

1505422428 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 125451876 (or 125451874 counting only the distinct ones).

The product of its (nonzero) digits is 25600, while the sum is 33.

The square root of 1505422428 is about 38799.7735560402. The cubic root of 1505422428 is about 1146.0919461206.

Adding to 1505422428 its reverse (8242245051), we get a palindrome (9747667479).

The spelling of 1505422428 in words is "one billion, five hundred five million, four hundred twenty-two thousand, four hundred twenty-eight".