1197995040 has 288 divisors, whose sum is σ = 4547140416. Its totient is φ = 284743680.

The previous prime is 1197995039. The next prime is 1197995081. The reversal of 1197995040 is 405997911.

It is a tau number, because it is divible by the number of its divisors (288).

It is a Smith number, since the sum of its digits (45) coincides with the sum of the digits of its prime factors.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 838807 + ... + 840233.

It is an arithmetic number, because the mean of its divisors is an integer number (15788682).

Almost surely, 2^1197995040 is an apocalyptic number.

1197995040 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 1197995040, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2273570208).

1197995040 is an abundant number, since it is smaller than the sum of its proper divisors (3349145376).

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

1197995040 is a wasteful number, since it uses less digits than its factorization.

1197995040 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1512 (or 1501 counting only the distinct ones).

The product of its (nonzero) digits is 102060, while the sum is 45.

The square root of 1197995040 is about 34612.0649485118. The cubic root of 1197995040 is about 1062.0664092873.

The spelling of 1197995040 in words is "one billion, one hundred ninety-seven million, nine hundred ninety-five thousand, forty".