1225437328 has 10 divisors (see below), whose sum is σ = 2374284854. Its totient is φ = 612718656.

The previous prime is 1225437307. The next prime is 1225437341. The reversal of 1225437328 is 8237345221.

It can be written as a sum of positive squares in only one way, i.e., 894488464 + 330948864 = 29908^2 + 18192^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 38294901 + ... + 38294932.

Almost surely, 2^1225437328 is an apocalyptic number.

It is an amenable number.

1225437328 is a deficient number, since it is larger than the sum of its proper divisors (1148847526).

1225437328 is an equidigital number, since it uses as much as digits as its factorization.

1225437328 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 76589841 (or 76589835 counting only the distinct ones).

The product of its digits is 80640, while the sum is 37.

The square root of 1225437328 is about 35006.2469853596. The cubic root of 1225437328 is about 1070.1147947994.

The spelling of 1225437328 in words is "one billion, two hundred twenty-five million, four hundred thirty-seven thousand, three hundred twenty-eight".