1101623864 has 48 divisors (see below), whose sum is σ = 2274802920. Its totient is φ = 495992960.

The previous prime is 1101623813. The next prime is 1101623881. The reversal of 1101623864 is 4683261011.

It is a hoax number, since the sum of its digits (32) coincides with the sum of the digits of its distinct prime factors.

It is a self number, because there is not a number n which added to its sum of digits gives 1101623864.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 4095122 + ... + 4095390.

Almost surely, 2^1101623864 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 1101623864, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1137401460).

1101623864 is an abundant number, since it is smaller than the sum of its proper divisors (1173179056).

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

1101623864 is a wasteful number, since it uses less digits than its factorization.

1101623864 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 728 (or 455 counting only the distinct ones).

The product of its (nonzero) digits is 6912, while the sum is 32.

The square root of 1101623864 is about 33190.7195462828. The cubic root of 1101623864 is about 1032.7878301013.

Adding to 1101623864 its reverse (4683261011), we get a palindrome (5784884875).

The spelling of 1101623864 in words is "one billion, one hundred one million, six hundred twenty-three thousand, eight hundred sixty-four".