1228625734 has 16 divisors (see below), whose sum is σ = 2230111008. Its totient is φ = 495580032.

The previous prime is 1228625719. The next prime is 1228625773. The reversal of 1228625734 is 4375268221.

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, 2580909 + ... + 2581384.

It is an arithmetic number, because the mean of its divisors is an integer number (139381938).

Almost surely, 2^1228625734 is an apocalyptic number.

1228625734 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

1228625734 is a deficient number, since it is larger than the sum of its proper divisors (1001485274).

1228625734 is a wasteful number, since it uses less digits than its factorization.

1228625734 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5162319.

The product of its digits is 161280, while the sum is 40.

The square root of 1228625734 is about 35051.7579302380. The cubic root of 1228625734 is about 1071.0420843165.

The spelling of 1228625734 in words is "one billion, two hundred twenty-eight million, six hundred twenty-five thousand, seven hundred thirty-four".