1978409114 has 8 divisors (see below), whose sum is σ = 3237396768. Its totient is φ = 899276860.

The previous prime is 1978409113. The next prime is 1978409131. The reversal of 1978409114 is 4119048791.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not an unprimeable number, because it can be changed into a prime (1978409113) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 44963822 + ... + 44963865.

It is an arithmetic number, because the mean of its divisors is an integer number (404674596).

Almost surely, 2^1978409114 is an apocalyptic number.

1978409114 is a deficient number, since it is larger than the sum of its proper divisors (1258987654).

1978409114 is a wasteful number, since it uses less digits than its factorization.

1978409114 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 89927700.

The product of its (nonzero) digits is 72576, while the sum is 44.

The square root of 1978409114 is about 44479.3110782980. The cubic root of 1978409114 is about 1255.3708345778.

The spelling of 1978409114 in words is "one billion, nine hundred seventy-eight million, four hundred nine thousand, one hundred fourteen".