1223625464 has 16 divisors (see below), whose sum is σ = 2315741400. Its totient is φ = 606094432.

The previous prime is 1223625437. The next prime is 1223625467. The reversal of 1223625464 is 4645263221.

It is a super-2 number, since 2×1223625464² = 2994518552298430592, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1223625467) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 713879 + ... + 715590.

Almost surely, 2^1223625464 is an apocalyptic number.

It is an amenable number.

1223625464 is a deficient number, since it is larger than the sum of its proper divisors (1092115936).

1223625464 is a wasteful number, since it uses less digits than its factorization.

1223625464 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1429582 (or 1429578 counting only the distinct ones).

The product of its digits is 69120, while the sum is 35.

The square root of 1223625464 is about 34980.3582600293. The cubic root of 1223625464 is about 1069.5871304305.

Adding to 1223625464 its reverse (4645263221), we get a palindrome (5868888685).

The spelling of 1223625464 in words is "one billion, two hundred twenty-three million, six hundred twenty-five thousand, four hundred sixty-four".