140429378 has 4 divisors (see below), whose sum is σ = 210644070. Its totient is φ = 70214688.

The previous prime is 140429369. The next prime is 140429407. The reversal of 140429378 is 873924041.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 873924041 = 9883 ⋅88427.

It can be written as a sum of positive squares in only one way, i.e., 134490409 + 5938969 = 11597^2 + 2437^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 35107343 + ... + 35107346.

Almost surely, 2^140429378 is an apocalyptic number.

140429378 is a deficient number, since it is larger than the sum of its proper divisors (70214692).

140429378 is an equidigital number, since it uses as much as digits as its factorization.

140429378 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 70214691.

The product of its (nonzero) digits is 48384, while the sum is 38.

The square root of 140429378 is about 11850.2902074169. The cubic root of 140429378 is about 519.7797119192.

The spelling of 140429378 in words is "one hundred forty million, four hundred twenty-nine thousand, three hundred seventy-eight".