1978550282 has 16 divisors (see below), whose sum is σ = 3003208704. Its totient is φ = 977550000.

The previous prime is 1978550281. The next prime is 1978550333. The reversal of 1978550282 is 2820558791.

It is a super-2 number, since 2×1978550282² = 7829322436804559048, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (1978550281) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 40532 + ... + 74832.

It is an arithmetic number, because the mean of its divisors is an integer number (187700544).

Almost surely, 2^1978550282 is an apocalyptic number.

1978550282 is a deficient number, since it is larger than the sum of its proper divisors (1024658422).

1978550282 is a wasteful number, since it uses less digits than its factorization.

1978550282 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 34645.

The product of its (nonzero) digits is 403200, while the sum is 47.

The square root of 1978550282 is about 44480.8979450730. The cubic root of 1978550282 is about 1255.4006925706.

The spelling of 1978550282 in words is "one billion, nine hundred seventy-eight million, five hundred fifty thousand, two hundred eighty-two".