140811432 has 64 divisors (see below), whose sum is σ = 374088000. Its totient is φ = 44043264.

The previous prime is 140811427. The next prime is 140811457. The reversal of 140811432 is 234118041.

It is a Harshad number since it is a multiple of its sum of digits (24).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 48288 + ... + 51120.

It is an arithmetic number, because the mean of its divisors is an integer number (5845125).

Almost surely, 2^140811432 is an apocalyptic number.

140811432 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 140811432, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (187044000).

140811432 is an abundant number, since it is smaller than the sum of its proper divisors (233276568).

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

140811432 is a wasteful number, since it uses less digits than its factorization.

140811432 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2970 (or 2966 counting only the distinct ones).

The product of its (nonzero) digits is 768, while the sum is 24.

The square root of 140811432 is about 11866.3992853772. The cubic root of 140811432 is about 520.2506582472.

Adding to 140811432 its reverse (234118041), we get a palindrome (374929473).

The spelling of 140811432 in words is "one hundred forty million, eight hundred eleven thousand, four hundred thirty-two".