3140449978 has 12 divisors (see below), whose sum is σ = 4867537050. Its totient is φ = 1519571640.

The previous prime is 3140449973. The next prime is 3140450011. The reversal of 3140449978 is 8799440413.

It can be written as a sum of positive squares in only one way, i.e., 3068827609 + 71622369 = 55397^2 + 8463^2 .

It is not an unprimeable number, because it can be changed into a prime (3140449973) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 815053 + ... + 818896.

Almost surely, 2^3140449978 is an apocalyptic number.

3140449978 is a deficient number, since it is larger than the sum of its proper divisors (1727087072).

3140449978 is a wasteful number, since it uses less digits than its factorization.

3140449978 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1634013 (or 1633982 counting only the distinct ones).

The product of its (nonzero) digits is 870912, while the sum is 49.

The square root of 3140449978 is about 56039.7178615310. The cubic root of 3140449978 is about 1464.4142964977.

The spelling of 3140449978 in words is "three billion, one hundred forty million, four hundred forty-nine thousand, nine hundred seventy-eight".