1128238264 has 8 divisors (see below), whose sum is σ = 2115446760. Its totient is φ = 564119128.

The previous prime is 1128238231. The next prime is 1128238289. The reversal of 1128238264 is 4628328211.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (8).

It is a hoax number, since the sum of its digits (37) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 70514884 + ... + 70514899.

It is an arithmetic number, because the mean of its divisors is an integer number (264430845).

Almost surely, 2^1128238264 is an apocalyptic number.

It is an amenable number.

1128238264 is a deficient number, since it is larger than the sum of its proper divisors (987208496).

1128238264 is a wasteful number, since it uses less digits than its factorization.

1128238264 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 141029789 (or 141029785 counting only the distinct ones).

The product of its digits is 36864, while the sum is 37.

The square root of 1128238264 is about 33589.2581638833. The cubic root of 1128238264 is about 1041.0388608467.

The spelling of 1128238264 in words is "one billion, one hundred twenty-eight million, two hundred thirty-eight thousand, two hundred sixty-four".