140402258 has 16 divisors (see below), whose sum is σ = 221374080. Its totient is φ = 66655776.

The previous prime is 140402257. The next prime is 140402279. The reversal of 140402258 is 852204041.

It is a happy number.

140402258 is digitally balanced in base 2, 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 (140402257) 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, 4838 + ... + 17441.

It is an arithmetic number, because the mean of its divisors is an integer number (13835880).

Almost surely, 2^140402258 is an apocalyptic number.

140402258 is a deficient number, since it is larger than the sum of its proper divisors (80971822).

140402258 is a wasteful number, since it uses less digits than its factorization.

140402258 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22441.

The product of its (nonzero) digits is 2560, while the sum is 26.

The square root of 140402258 is about 11849.1458763913. The cubic root of 140402258 is about 519.7462494687.

Adding to 140402258 its reverse (852204041), we get a palindrome (992606299).

The spelling of 140402258 in words is "one hundred forty million, four hundred two thousand, two hundred fifty-eight".