140443402 has 32 divisors (see below), whose sum is σ = 242873280. Its totient is φ = 60238080.

The previous prime is 140443399. The next prime is 140443403. The reversal of 140443402 is 204344041.

It is a Harshad number since it is a multiple of its sum of digits (22).

It is not an unprimeable number, because it can be changed into a prime (140443403) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 140368 + ... + 141364.

It is an arithmetic number, because the mean of its divisors is an integer number (7589790).

Almost surely, 2^140443402 is an apocalyptic number.

140443402 is a deficient number, since it is larger than the sum of its proper divisors (102429878).

140443402 is a wasteful number, since it uses less digits than its factorization.

140443402 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1366.

The product of its (nonzero) digits is 1536, while the sum is 22.

The square root of 140443402 is about 11850.8819081113. The cubic root of 140443402 is about 519.7970139684.

Adding to 140443402 its reverse (204344041), we get a palindrome (344787443).

The spelling of 140443402 in words is "one hundred forty million, four hundred forty-three thousand, four hundred two".