1078400982 has 16 divisors (see below), whose sum is σ = 2165829120. Its totient is φ = 357962472.

The previous prime is 1078400969. The next prime is 1078400987. The reversal of 1078400982 is 2890048701.

It is a self number, because there is not a number n which added to its sum of digits gives 1078400982.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1078400987) 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, 374578 + ... + 377445.

It is an arithmetic number, because the mean of its divisors is an integer number (135364320).

Almost surely, 2^1078400982 is an apocalyptic number.

1078400982 is an abundant number, since it is smaller than the sum of its proper divisors (1087428138).

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

1078400982 is a wasteful number, since it uses less digits than its factorization.

1078400982 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 752267.

The product of its (nonzero) digits is 32256, while the sum is 39.

The square root of 1078400982 is about 32839.0161545683. The cubic root of 1078400982 is about 1025.4789693276.

The spelling of 1078400982 in words is "one billion, seventy-eight million, four hundred thousand, nine hundred eighty-two".