1978671230 has 16 divisors (see below), whose sum is σ = 3644437104. Its totient is φ = 773062080.

The previous prime is 1978671203. The next prime is 1978671241. The reversal of 1978671230 is 321768791.

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, 2300351 + ... + 2301210.

It is an arithmetic number, because the mean of its divisors is an integer number (227777319).

Almost surely, 2^1978671230 is an apocalyptic number.

1978671230 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1978671230 is a deficient number, since it is larger than the sum of its proper divisors (1665765874).

1978671230 is a wasteful number, since it uses less digits than its factorization.

1978671230 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4601611.

The product of its (nonzero) digits is 127008, while the sum is 44.

The square root of 1978671230 is about 44482.2574741885. The cubic root of 1978671230 is about 1255.4262727661.

The spelling of 1978671230 in words is "one billion, nine hundred seventy-eight million, six hundred seventy-one thousand, two hundred thirty".