1190259978 has 64 divisors (see below), whose sum is σ = 2557440000. Its totient is φ = 368207424.

The previous prime is 1190259953. The next prime is 1190259979. The reversal of 1190259978 is 8799520911.

1190259978 is digitally balanced in base 4, because in such base it contains all the possibile digits an equal number of times.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 1190259978.

It is not an unprimeable number, because it can be changed into a prime (1190259979) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1341451 + ... + 1342337.

It is an arithmetic number, because the mean of its divisors is an integer number (39960000).

Almost surely, 2^1190259978 is an apocalyptic number.

1190259978 is an abundant number, since it is smaller than the sum of its proper divisors (1367180022).

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

1190259978 is a wasteful number, since it uses less digits than its factorization.

1190259978 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1139.

The product of its (nonzero) digits is 408240, while the sum is 51.

The square root of 1190259978 is about 34500.1446083926. The cubic root of 1190259978 is about 1059.7756668971.

The spelling of 1190259978 in words is "one billion, one hundred ninety million, two hundred fifty-nine thousand, nine hundred seventy-eight".