1204002400 has 36 divisors (see below), whose sum is σ = 2939272812. Its totient is φ = 481600640.

The previous prime is 1204002391. The next prime is 1204002403. The reversal of 1204002400 is 42004021.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1204002403) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 751702 + ... + 753301.

It is an arithmetic number, because the mean of its divisors is an integer number (81646467).

Almost surely, 2^1204002400 is an apocalyptic number.

1204002400 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1204002400 is an abundant number, since it is smaller than the sum of its proper divisors (1735270412).

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

1204002400 is a wasteful number, since it uses less digits than its factorization.

1204002400 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1505023 (or 1505010 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 13.

The square root of 1204002400 is about 34698.7377292028. The cubic root of 1204002400 is about 1063.8386982947.

Adding to 1204002400 its reverse (42004021), we get a palindrome (1246006421).

The spelling of 1204002400 in words is "one billion, two hundred four million, two thousand, four hundred".