1190020 has 48 divisors (see below), whose sum is σ = 2822400. Its totient is φ = 418176.

The previous prime is 1190011. The next prime is 1190023. The reversal of 1190020 is 200911.

1190020 = T₆₅ + T₆₆ + ... + T₁₉₄.

1190020 = 102² + 103² + ... + 166².

It is a super-2 number, since 2×1190020² = 2832295200800, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (13).

It is not an unprimeable number, because it can be changed into a prime (1190023) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 5881 + ... + 6079.

It is an arithmetic number, because the mean of its divisors is an integer number (58800).

2^1190020 is an apocalyptic number.

1190020 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 1190020, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1411200).

1190020 is an abundant number, since it is smaller than the sum of its proper divisors (1632380).

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

1190020 is a wasteful number, since it uses less digits than its factorization.

1190020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 244 (or 242 counting only the distinct ones).

The product of its (nonzero) digits is 18, while the sum is 13.

The square root of 1190020 is about 1090.8803784100. The cubic root of 1190020 is about 105.9704438778.

Adding to 1190020 its reverse (200911), we get a palindrome (1390931).

The spelling of 1190020 in words is "one million, one hundred ninety thousand, twenty".