1204051320 has 48 divisors (see below), whose sum is σ = 3913167960. Its totient is φ = 321080256.

The previous prime is 1204051309. The next prime is 1204051339. The reversal of 1204051320 is 231504021.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a junction number, because it is equal to n+sod(n) for n = 1204051293 and 1204051302.

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, 1671934 + ... + 1672653.

Almost surely, 2^1204051320 is an apocalyptic number.

1204051320 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1204051320 is an abundant number, since it is smaller than the sum of its proper divisors (2709116640).

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

1204051320 is a wasteful number, since it uses less digits than its factorization.

1204051320 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3344604 (or 3344597 counting only the distinct ones).

The product of its (nonzero) digits is 240, while the sum is 18.

The square root of 1204051320 is about 34699.4426468207. The cubic root of 1204051320 is about 1063.8531064289.

Adding to 1204051320 its reverse (231504021), we get a palindrome (1435555341).

The spelling of 1204051320 in words is "one billion, two hundred four million, fifty-one thousand, three hundred twenty".