1228089264 has 40 divisors (see below), whose sum is σ = 3177503472. Its totient is φ = 408725760.

The previous prime is 1228089259. The next prime is 1228089287. The reversal of 1228089264 is 4629808221.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 11754 + ... + 50934.

Almost surely, 2^1228089264 is an apocalyptic number.

It is an amenable number.

1228089264 is an abundant number, since it is smaller than the sum of its proper divisors (1949414208).

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

1228089264 is a wasteful number, since it uses less digits than its factorization.

1228089264 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 39845 (or 39839 counting only the distinct ones).

The product of its (nonzero) digits is 110592, while the sum is 42.

The square root of 1228089264 is about 35044.1045541187. The cubic root of 1228089264 is about 1070.8861741858.

The spelling of 1228089264 in words is "one billion, two hundred twenty-eight million, eighty-nine thousand, two hundred sixty-four".