1228456734 has 16 divisors (see below), whose sum is σ = 2457459840. Its totient is φ = 409394520.

The previous prime is 1228456729. The next prime is 1228456741. The reversal of 1228456734 is 4376548221.

It is a congruent number.

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, 10119 + ... + 50589.

It is an arithmetic number, because the mean of its divisors is an integer number (153591240).

Almost surely, 2^1228456734 is an apocalyptic number.

1228456734 is an abundant number, since it is smaller than the sum of its proper divisors (1229003106).

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

1228456734 is a wasteful number, since it uses less digits than its factorization.

1228456734 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 45535.

The product of its digits is 322560, while the sum is 42.

The square root of 1228456734 is about 35049.3471265871. The cubic root of 1228456734 is about 1070.9929740499.

The spelling of 1228456734 in words is "one billion, two hundred twenty-eight million, four hundred fifty-six thousand, seven hundred thirty-four".