1123659432 has 64 divisors (see below), whose sum is σ = 3567177600. Its totient is φ = 321045120.

The previous prime is 1123659431. The next prime is 1123659451. The reversal of 1123659432 is 2349563211.

1123659432 is a `hidden beast` number, since 1 + 1 + 2 + 36 + 594 + 32 = 666.

It is a super-2 number, since 2×1123659432² = 2525221038245125248, which contains 22 as substring.

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

It is not an unprimeable number, because it can be changed into a prime (1123659431) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 370069 + ... + 373092.

It is an arithmetic number, because the mean of its divisors is an integer number (55737150).

Almost surely, 2^1123659432 is an apocalyptic number.

1123659432 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

1123659432 is an abundant number, since it is smaller than the sum of its proper divisors (2443518168).

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

1123659432 is a wasteful number, since it uses less digits than its factorization.

1123659432 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 743183 (or 743173 counting only the distinct ones).

The product of its digits is 38880, while the sum is 36.

The square root of 1123659432 is about 33521.0296977882. The cubic root of 1123659432 is about 1039.6286371335.

The spelling of 1123659432 in words is "one billion, one hundred twenty-three million, six hundred fifty-nine thousand, four hundred thirty-two".