1204621512 has 16 divisors (see below), whose sum is σ = 3011553840. Its totient is φ = 401540496.

The previous prime is 1204621477. The next prime is 1204621519. The reversal of 1204621512 is 2151264021.

It is a super-2 number, since 2×1204621512² = 2902225974346332288, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (24), and also a Moran number because the ratio is a prime number: 50192563 = 1204621512 / (1 + 2 + 0 + 4 + 6 + 2 + 1 + 5 + 1 + 2).

It is not an unprimeable number, because it can be changed into a prime (1204621519) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 25096258 + ... + 25096305.

It is an arithmetic number, because the mean of its divisors is an integer number (188222115).

Almost surely, 2^1204621512 is an apocalyptic number.

1204621512 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

1204621512 is an abundant number, since it is smaller than the sum of its proper divisors (1806932328).

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

1204621512 is a wasteful number, since it uses less digits than its factorization.

1204621512 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 50192572 (or 50192568 counting only the distinct ones).

The product of its (nonzero) digits is 960, while the sum is 24.

The square root of 1204621512 is about 34707.6578293609. The cubic root of 1204621512 is about 1064.0210131151.

Adding to 1204621512 its reverse (2151264021), we get a palindrome (3355885533).

The spelling of 1204621512 in words is "one billion, two hundred four million, six hundred twenty-one thousand, five hundred twelve".