190099440 has 320 divisors, whose sum is σ = 719953920. Its totient is φ = 45895680.

The previous prime is 190099433. The next prime is 190099501. The reversal of 190099440 is 44990091.

It is a super-2 number, since 2×190099440² = 72275594176627200, which contains 22 as substring.

It is a hoax number, since the sum of its digits (36) 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 (36).

It is a junction number, because it is equal to n+sod(n) for n = 190099395 and 190099404.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 1138237 + ... + 1138403.

It is an arithmetic number, because the mean of its divisors is an integer number (2249856).

Almost surely, 2^190099440 is an apocalyptic number.

190099440 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 190099440, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (359976960).

190099440 is an abundant number, since it is smaller than the sum of its proper divisors (529854480).

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

190099440 is a wasteful number, since it uses less digits than its factorization.

190099440 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 237 (or 225 counting only the distinct ones).

The product of its (nonzero) digits is 11664, while the sum is 36.

The square root of 190099440 is about 13787.6553481729. The cubic root of 190099440 is about 574.9899834424.

The spelling of 190099440 in words is "one hundred ninety million, ninety-nine thousand, four hundred forty".