1505969920 has 216 divisors, whose sum is σ = 4521442464. Its totient is φ = 476356608.

The previous prime is 1505969909. The next prime is 1505969957. The reversal of 1505969920 is 299695051.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 814437 + ... + 816283.

It is an arithmetic number, because the mean of its divisors is an integer number (20932604).

Almost surely, 2^1505969920 is an apocalyptic number.

1505969920 is a gapful number since it is divisible by the number (10) 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 1505969920, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2260721232).

1505969920 is an abundant number, since it is smaller than the sum of its proper divisors (3015472544).

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

1505969920 is a wasteful number, since it uses less digits than its factorization.

1505969920 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1895 (or 1874 counting only the distinct ones).

The product of its (nonzero) digits is 218700, while the sum is 46.

The square root of 1505969920 is about 38806.8282651391. The cubic root of 1505969920 is about 1146.2308661802.

The spelling of 1505969920 in words is "one billion, five hundred five million, nine hundred sixty-nine thousand, nine hundred twenty".