140920432 has 20 divisors (see below), whose sum is σ = 275541640. Its totient is φ = 69812928.

The previous prime is 140920427. The next prime is 140920447. The reversal of 140920432 is 234029041.

It is a junction number, because it is equal to n+sod(n) for n = 140920397 and 140920406.

It is a congruent number.

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 3 ways as a sum of consecutive naturals, for example, 38658 + ... + 42145.

It is an arithmetic number, because the mean of its divisors is an integer number (13777082).

Almost surely, 2^140920432 is an apocalyptic number.

It is an amenable number.

140920432 is a deficient number, since it is larger than the sum of its proper divisors (134621208).

140920432 is a wasteful number, since it uses less digits than its factorization.

140920432 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 80920 (or 80914 counting only the distinct ones).

The product of its (nonzero) digits is 1728, while the sum is 25.

The square root of 140920432 is about 11870.9911970315. The cubic root of 140920432 is about 520.3848630135.

Adding to 140920432 its reverse (234029041), we get a palindrome (374949473).

The spelling of 140920432 in words is "one hundred forty million, nine hundred twenty thousand, four hundred thirty-two".