1505454040 has 64 divisors (see below), whose sum is σ = 3605420160. Its totient is φ = 563773440.

The previous prime is 1505454017. The next prime is 1505454043. The reversal of 1505454040 is 404545051.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1505454043) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 125505 + ... + 136975.

It is an arithmetic number, because the mean of its divisors is an integer number (56334690).

Almost surely, 2^1505454040 is an apocalyptic number.

1505454040 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 1505454040, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1802710080).

1505454040 is an abundant number, since it is smaller than the sum of its proper divisors (2099966120).

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

1505454040 is a wasteful number, since it uses less digits than its factorization.

1505454040 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11692 (or 11688 counting only the distinct ones).

The product of its (nonzero) digits is 8000, while the sum is 28.

The square root of 1505454040 is about 38800.1809274132. The cubic root of 1505454040 is about 1146.0999682333.

Adding to 1505454040 its reverse (404545051), we get a palindrome (1909999091).

The spelling of 1505454040 in words is "one billion, five hundred five million, four hundred fifty-four thousand, forty".