1978087482 has 24 divisors (see below), whose sum is σ = 4898121696. Its totient is φ = 565167816.

The previous prime is 1978087471. The next prime is 1978087519. The reversal of 1978087482 is 2847808791.

It is a happy number.

1978087482 is a `hidden beast` number, since 1 + 9 + 7 + 80 + 87 + 482 = 666.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 7849428 + ... + 7849679.

It is an arithmetic number, because the mean of its divisors is an integer number (204088404).

Almost surely, 2^1978087482 is an apocalyptic number.

1978087482 is an abundant number, since it is smaller than the sum of its proper divisors (2920034214).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1978087482 is a wasteful number, since it uses less digits than its factorization.

1978087482 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15699122 (or 15699119 counting only the distinct ones).

The product of its (nonzero) digits is 1806336, while the sum is 54.

The square root of 1978087482 is about 44475.6954077168. The cubic root of 1978087482 is about 1255.3028019160.

The spelling of 1978087482 in words is "one billion, nine hundred seventy-eight million, eighty-seven thousand, four hundred eighty-two".