190046864 has 80 divisors (see below), whose sum is σ = 438829056. Its totient is φ = 78019200.

The previous prime is 190046851. The next prime is 190046869. The reversal of 190046864 is 468640091.

It is a super-2 number, since 2×190046864² = 72235621032468992, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (190046869) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 440729 + ... + 441159.

Almost surely, 2^190046864 is an apocalyptic number.

190046864 is a gapful number since it is divisible by the number (14) 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 190046864, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (219414528).

190046864 is an abundant number, since it is smaller than the sum of its proper divisors (248782192).

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

190046864 is a wasteful number, since it uses less digits than its factorization.

190046864 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 604 (or 598 counting only the distinct ones).

The product of its (nonzero) digits is 41472, while the sum is 38.

The square root of 190046864 is about 13785.7485832290. The cubic root of 190046864 is about 574.9369700287.

The spelling of 190046864 in words is "one hundred ninety million, forty-six thousand, eight hundred sixty-four".