1228625034 has 128 divisors (see below), whose sum is σ = 3160131072. Its totient is φ = 309795840.

The previous prime is 1228624993. The next prime is 1228625053. The reversal of 1228625034 is 4305268221.

It is a junction number, because it is equal to n+sod(n) for n = 1228624986 and 1228625004.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 1231824 + ... + 1232820.

It is an arithmetic number, because the mean of its divisors is an integer number (24688524).

Almost surely, 2^1228625034 is an apocalyptic number.

1228625034 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 1228625034, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1580065536).

1228625034 is an abundant number, since it is smaller than the sum of its proper divisors (1931506038).

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

1228625034 is a wasteful number, since it uses less digits than its factorization.

1228625034 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1120.

The product of its (nonzero) digits is 23040, while the sum is 33.

The square root of 1228625034 is about 35051.7479450027. The cubic root of 1228625034 is about 1071.0418809105.

The spelling of 1228625034 in words is "one billion, two hundred twenty-eight million, six hundred twenty-five thousand, thirty-four".