1190097720 has 96 divisors (see below), whose sum is σ = 4420372320. Its totient is φ = 272021760.

The previous prime is 1190097709. The next prime is 1190097721. The reversal of 1190097720 is 277900911.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1190097721) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 233611 + ... + 238650.

It is an arithmetic number, because the mean of its divisors is an integer number (46045545).

Almost surely, 2^1190097720 is an apocalyptic number.

1190097720 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1190097720 is an abundant number, since it is smaller than the sum of its proper divisors (3230274600).

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

1190097720 is a wasteful number, since it uses less digits than its factorization.

1190097720 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 472285 (or 472278 counting only the distinct ones).

The product of its (nonzero) digits is 7938, while the sum is 36.

The square root of 1190097720 is about 34497.7929728845. The cubic root of 1190097720 is about 1059.7275079801.

The spelling of 1190097720 in words is "one billion, one hundred ninety million, ninety-seven thousand, seven hundred twenty".