1078449140 has 24 divisors (see below), whose sum is σ = 2286735360. Its totient is φ = 427190688.

The previous prime is 1078449137. The next prime is 1078449143. The reversal of 1078449140 is 419448701.

It is an interprime number because it is at equal distance from previous prime (1078449137) and next prime (1078449143).

It is a Smith number, since the sum of its digits (38) coincides with the sum of the digits of its prime factors.

It is a junction number, because it is equal to n+sod(n) for n = 1078449094 and 1078449103.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1078449143) 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, 259700 + ... + 263819.

It is an arithmetic number, because the mean of its divisors is an integer number (95280640).

Almost surely, 2^1078449140 is an apocalyptic number.

1078449140 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1078449140 is an abundant number, since it is smaller than the sum of its proper divisors (1208286220).

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

1078449140 is a wasteful number, since it uses less digits than its factorization.

1078449140 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 523631 (or 523629 counting only the distinct ones).

The product of its (nonzero) digits is 32256, while the sum is 38.

The square root of 1078449140 is about 32839.7493900304. The cubic root of 1078449140 is about 1025.4942339901.

The spelling of 1078449140 in words is "one billion, seventy-eight million, four hundred forty-nine thousand, one hundred forty".