190965390 has 192 divisors, whose sum is σ = 605698560. Its totient is φ = 37428480.

The previous prime is 190965353. The next prime is 190965407. The reversal of 190965390 is 93569091.

It is a hoax number, since the sum of its digits (42) coincides with the sum of the digits of its distinct prime factors.

It is a Harshad number since it is a multiple of its sum of digits (42).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 833796 + ... + 834024.

It is an arithmetic number, because the mean of its divisors is an integer number (3154680).

Almost surely, 2^190965390 is an apocalyptic number.

190965390 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 190965390, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (302849280).

190965390 is an abundant number, since it is smaller than the sum of its proper divisors (414733170).

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

190965390 is a wasteful number, since it uses less digits than its factorization.

190965390 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 295 (or 276 counting only the distinct ones).

The product of its (nonzero) digits is 65610, while the sum is 42.

The square root of 190965390 is about 13819.0227585021. The cubic root of 190965390 is about 575.8617349940.

The spelling of 190965390 in words is "one hundred ninety million, nine hundred sixty-five thousand, three hundred ninety".