1152732438 has 96 divisors (see below), whose sum is σ = 3026263680. Its totient is φ = 322414560.

The previous prime is 1152732437. The next prime is 1152732461. The reversal of 1152732438 is 8342372511.

1152732438 is a `hidden beast` number, since 1 + 152 + 73 + 2 + 438 = 666.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1152732437) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 94645 + ... + 106127.

It is an arithmetic number, because the mean of its divisors is an integer number (31523580).

Almost surely, 2^1152732438 is an apocalyptic number.

1152732438 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 1152732438, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1513131840).

1152732438 is an abundant number, since it is smaller than the sum of its proper divisors (1873531242).

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

1152732438 is a wasteful number, since it uses less digits than its factorization.

1152732438 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11531 (or 11512 counting only the distinct ones).

The product of its digits is 40320, while the sum is 36.

The square root of 1152732438 is about 33951.9136132266. The cubic root of 1152732438 is about 1048.5186785074.

It can be divided in two parts, 115273 and 2438, that added together give a palindrome (117711).

The spelling of 1152732438 in words is "one billion, one hundred fifty-two million, seven hundred thirty-two thousand, four hundred thirty-eight".