140240446 has 16 divisors (see below), whose sum is σ = 225789984. Its totient is φ = 65090304.

The previous prime is 140240437. The next prime is 140240449. The reversal of 140240446 is 644042041.

It is a self number, because there is not a number n which added to its sum of digits gives 140240446.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (140240449) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 25770 + ... + 30733.

It is an arithmetic number, because the mean of its divisors is an integer number (14111874).

Almost surely, 2^140240446 is an apocalyptic number.

140240446 is a deficient number, since it is larger than the sum of its proper divisors (85549538).

140240446 is a wasteful number, since it uses less digits than its factorization.

140240446 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 56595.

The product of its (nonzero) digits is 3072, while the sum is 25.

The square root of 140240446 is about 11842.3159052611. The cubic root of 140240446 is about 519.5465055078.

Adding to 140240446 its reverse (644042041), we get a palindrome (784282487).

The spelling of 140240446 in words is "one hundred forty million, two hundred forty thousand, four hundred forty-six".