1214623450 has 24 divisors (see below), whose sum is σ = 2378106720. Its totient is φ = 460278000.

The previous prime is 1214623439. The next prime is 1214623453. The reversal of 1214623450 is 543264121.

It is not an unprimeable number, because it can be changed into a prime (1214623453) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 638326 + ... + 640225.

It is an arithmetic number, because the mean of its divisors is an integer number (99087780).

Almost surely, 2^1214623450 is an apocalyptic number.

1214623450 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1214623450 is a deficient number, since it is larger than the sum of its proper divisors (1163483270).

1214623450 is a wasteful number, since it uses less digits than its factorization.

1214623450 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1278582 (or 1278577 counting only the distinct ones).

The product of its (nonzero) digits is 5760, while the sum is 28.

The square root of 1214623450 is about 34851.4483199766. The cubic root of 1214623450 is about 1066.9577455396.

Adding to 1214623450 its reverse (543264121), we get a palindrome (1757887571).

The spelling of 1214623450 in words is "one billion, two hundred fourteen million, six hundred twenty-three thousand, four hundred fifty".