140402234 has 16 divisors (see below), whose sum is σ = 240848448. Its totient is φ = 60132672.

The previous prime is 140402233. The next prime is 140402239. The reversal of 140402234 is 432204041.

140402234 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is not an unprimeable number, because it can be changed into a prime (140402231) 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, 30722 + ... + 34994.

It is an arithmetic number, because the mean of its divisors is an integer number (15053028).

Almost surely, 2^140402234 is an apocalyptic number.

140402234 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

140402234 is a deficient number, since it is larger than the sum of its proper divisors (100446214).

140402234 is a wasteful number, since it uses less digits than its factorization.

140402234 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6629.

The product of its (nonzero) digits is 768, while the sum is 20.

The square root of 140402234 is about 11849.1448636600. The cubic root of 140402234 is about 519.7462198540.

Adding to 140402234 its reverse (432204041), we get a palindrome (572606275).

The spelling of 140402234 in words is "one hundred forty million, four hundred two thousand, two hundred thirty-four".