1190862540 has 192 divisors, whose sum is σ = 4251985920. Its totient is φ = 271054080.

The previous prime is 1190862527. The next prime is 1190862581. The reversal of 1190862540 is 452680911.

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 = 1190862495 and 1190862504.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 1175074 + ... + 1176086.

It is an arithmetic number, because the mean of its divisors is an integer number (22145760).

Almost surely, 2^1190862540 is an apocalyptic number.

1190862540 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1190862540, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2125992960).

1190862540 is an abundant number, since it is smaller than the sum of its proper divisors (3061123380).

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

1190862540 is a wasteful number, since it uses less digits than its factorization.

1190862540 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1349 (or 1341 counting only the distinct ones).

The product of its (nonzero) digits is 17280, while the sum is 36.

The square root of 1190862540 is about 34508.8762494521. The cubic root of 1190862540 is about 1059.9544717600.

The spelling of 1190862540 in words is "one billion, one hundred ninety million, eight hundred sixty-two thousand, five hundred forty".