140236044 has 48 divisors (see below), whose sum is σ = 353138688. Its totient is φ = 43057728.

The previous prime is 140236027. The next prime is 140236069. The reversal of 140236044 is 440632041.

It is a super-2 number, since 2×140236044² = 39332296073539872, which contains 22 as substring.

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 15 ways as a sum of consecutive naturals, for example, 128469 + ... + 129555.

It is an arithmetic number, because the mean of its divisors is an integer number (7357056).

Almost surely, 2^140236044 is an apocalyptic number.

It is an amenable number.

140236044 is an abundant number, since it is smaller than the sum of its proper divisors (212902644).

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

140236044 is a wasteful number, since it uses less digits than its factorization.

140236044 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1934 (or 1932 counting only the distinct ones).

The product of its (nonzero) digits is 2304, while the sum is 24.

The square root of 140236044 is about 11842.1300448864. The cubic root of 140236044 is about 519.5410694449.

Adding to 140236044 its reverse (440632041), we get a palindrome (580868085).

The spelling of 140236044 in words is "one hundred forty million, two hundred thirty-six thousand, forty-four".