1204452440 has 32 divisors (see below), whose sum is σ = 2712476160. Its totient is φ = 481344000.

The previous prime is 1204452419. The next prime is 1204452443. The reversal of 1204452440 is 442544021.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1204452443) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 32960 + ... + 59120.

It is an arithmetic number, because the mean of its divisors is an integer number (84764880).

Almost surely, 2^1204452440 is an apocalyptic number.

1204452440 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1204452440 is an abundant number, since it is smaller than the sum of its proper divisors (1508023720).

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

1204452440 is a wasteful number, since it uses less digits than its factorization.

1204452440 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27323 (or 27319 counting only the distinct ones).

The product of its (nonzero) digits is 5120, while the sum is 26.

The square root of 1204452440 is about 34705.2220854441. Note that the first 3 decimals coincide. The cubic root of 1204452440 is about 1063.9712313438.

Adding to 1204452440 its reverse (442544021), we get a palindrome (1646996461).

The spelling of 1204452440 in words is "one billion, two hundred four million, four hundred fifty-two thousand, four hundred forty".