140405342 has 16 divisors (see below), whose sum is σ = 262576512. Its totient is φ = 54703320.

The previous prime is 140405333. The next prime is 140405351. The reversal of 140405342 is 243504041.

It is an interprime number because it is at equal distance from previous prime (140405333) and next prime (140405351).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 455708 + ... + 456015.

It is an arithmetic number, because the mean of its divisors is an integer number (16411032).

Almost surely, 2^140405342 is an apocalyptic number.

140405342 is a deficient number, since it is larger than the sum of its proper divisors (122171170).

140405342 is a wasteful number, since it uses less digits than its factorization.

140405342 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 911743.

The product of its (nonzero) digits is 1920, while the sum is 23.

The square root of 140405342 is about 11849.2760116389. The cubic root of 140405342 is about 519.7500549291.

Adding to 140405342 its reverse (243504041), we get a palindrome (383909383).

The spelling of 140405342 in words is "one hundred forty million, four hundred five thousand, three hundred forty-two".