1504072400 has 60 divisors (see below), whose sum is σ = 3618291852. Its totient is φ = 600837120.

The previous prime is 1504072393. The next prime is 1504072417. The reversal of 1504072400 is 42704051.

It can be written as a sum of positive squares in 6 ways, for example, as 80066704 + 1424005696 = 8948^2 + 37736^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 372794 + ... + 376806.

Almost surely, 2^1504072400 is an apocalyptic number.

1504072400 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 1504072400, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1809145926).

1504072400 is an abundant number, since it is smaller than the sum of its proper divisors (2114219452).

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

1504072400 is a wasteful number, since it uses less digits than its factorization.

1504072400 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4968 (or 4957 counting only the distinct ones).

The product of its (nonzero) digits is 1120, while the sum is 23.

The square root of 1504072400 is about 38782.3722843253. The cubic root of 1504072400 is about 1145.7492474127.

Adding to 1504072400 its reverse (42704051), we get a palindrome (1546776451).

The spelling of 1504072400 in words is "one billion, five hundred four million, seventy-two thousand, four hundred".