1228526064 has 120 divisors (see below), whose sum is σ = 3522310272. Its totient is φ = 399611520.

The previous prime is 1228526053. The next prime is 1228526069. The reversal of 1228526064 is 4606258221.

It is a happy number.

1228526064 is a `hidden beast` number, since 122 + 8 + 526 + 0 + 6 + 4 = 666.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1228526069) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1093407 + ... + 1094529.

Almost surely, 2^1228526064 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1228526064, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1761155136).

1228526064 is an abundant number, since it is smaller than the sum of its proper divisors (2293784208).

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

1228526064 is a wasteful number, since it uses less digits than its factorization.

1228526064 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1315 (or 1306 counting only the distinct ones).

The product of its (nonzero) digits is 46080, while the sum is 36.

The square root of 1228526064 is about 35050.3361467476. The cubic root of 1228526064 is about 1071.0131214277.

The spelling of 1228526064 in words is "one billion, two hundred twenty-eight million, five hundred twenty-six thousand, sixty-four".