1190115440 has 40 divisors (see below), whose sum is σ = 2783045088. Its totient is φ = 473288960.

The previous prime is 1190115401. The next prime is 1190115463. The reversal of 1190115440 is 445110911.

It is a tau number, because it is divible by the number of its divisors (40).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 29156 + ... + 56835.

Almost surely, 2^1190115440 is an apocalyptic number.

1190115440 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1190115440 is an abundant number, since it is smaller than the sum of its proper divisors (1592929648).

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

1190115440 is a wasteful number, since it uses less digits than its factorization.

1190115440 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 86177 (or 86171 counting only the distinct ones).

The product of its (nonzero) digits is 720, while the sum is 26.

The square root of 1190115440 is about 34498.0497999525. The cubic root of 1190115440 is about 1059.7327675701.

It can be divided in two parts, 1190 and 115440, that multiplied together give a triangular number (137373600 = T₁₆₅₇₅).

The spelling of 1190115440 in words is "one billion, one hundred ninety million, one hundred fifteen thousand, four hundred forty".