1190394144 has 60 divisors (see below), whose sum is σ = 3500923734. Its totient is φ = 396797184.

The previous prime is 1190394131. The next prime is 1190394169. The reversal of 1190394144 is 4414930911.

It can be written as a sum of positive squares in only one way, i.e., 947408400 + 242985744 = 30780^2 + 15588^2 .

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a junction number, because it is equal to n+sod(n) for n = 1190394099 and 1190394108.

It is an unprimeable number.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 227037 + ... + 232220.

Almost surely, 2^1190394144 is an apocalyptic number.

It is an amenable number.

1190394144 is an abundant number, since it is smaller than the sum of its proper divisors (2310529590).

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

1190394144 is an equidigital number, since it uses as much as digits as its factorization.

1190394144 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 459279 (or 459262 counting only the distinct ones).

The product of its (nonzero) digits is 15552, while the sum is 36.

The square root of 1190394144 is about 34502.0889802342. The cubic root of 1190394144 is about 1059.8154846744.

The spelling of 1190394144 in words is "one billion, one hundred ninety million, three hundred ninety-four thousand, one hundred forty-four".