190012020 has 192 divisors, whose sum is σ = 617766912. Its totient is φ = 43200000.

The previous prime is 190011979. The next prime is 190012021. The reversal of 190012020 is 20210091.

It is a happy number.

It is a super-2 number, since 2×190012020² = 72209135488960800, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (15).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (190012021) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 756895 + ... + 757145.

It is an arithmetic number, because the mean of its divisors is an integer number (3217536).

Almost surely, 2^190012020 is an apocalyptic number.

190012020 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 190012020, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (308883456).

190012020 is an abundant number, since it is smaller than the sum of its proper divisors (427754892).

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

190012020 is a wasteful number, since it uses less digits than its factorization.

190012020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 342 (or 340 counting only the distinct ones).

The product of its (nonzero) digits is 36, while the sum is 15.

The square root of 190012020 is about 13784.4847564209. The cubic root of 190012020 is about 574.9018307516.

The spelling of 190012020 in words is "one hundred ninety million, twelve thousand, twenty".