1004515420 has 48 divisors (see below), whose sum is σ = 2130928128. Its totient is φ = 397742400.

The previous prime is 1004515381. The next prime is 1004515423. The reversal of 1004515420 is 245154001.

It is a junction number, because it is equal to n+sod(n) for n = 1004515391 and 1004515400.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1004515423) 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, 1470399 + ... + 1471081.

It is an arithmetic number, because the mean of its divisors is an integer number (44394336).

Almost surely, 2^1004515420 is an apocalyptic number.

1004515420 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1004515420 is an abundant number, since it is smaller than the sum of its proper divisors (1126412708).

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

1004515420 is a wasteful number, since it uses less digits than its factorization.

1004515420 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1330 (or 1328 counting only the distinct ones).

The product of its (nonzero) digits is 800, while the sum is 22.

The square root of 1004515420 is about 31694.0912474234. The cubic root of 1004515420 is about 1001.5028802196.

Adding to 1004515420 its reverse (245154001), we get a palindrome (1249669421).

The spelling of 1004515420 in words is "one billion, four million, five hundred fifteen thousand, four hundred twenty".