140779430 has 16 divisors (see below), whose sum is σ = 276439824. Its totient is φ = 51192480.

The previous prime is 140779423. The next prime is 140779517. The reversal of 140779430 is 34977041.

It is a super-2 number, since 2×140779430² = 39637695822249800, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 639797 + ... + 640016.

It is an arithmetic number, because the mean of its divisors is an integer number (17277489).

Almost surely, 2^140779430 is an apocalyptic number.

140779430 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

140779430 is a deficient number, since it is larger than the sum of its proper divisors (135660394).

140779430 is a wasteful number, since it uses less digits than its factorization.

140779430 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1279831.

The product of its (nonzero) digits is 21168, while the sum is 35.

The square root of 140779430 is about 11865.0507794952. The cubic root of 140779430 is about 520.2112430692.

The spelling of 140779430 in words is "one hundred forty million, seven hundred seventy-nine thousand, four hundred thirty".