190291620 has 48 divisors (see below), whose sum is σ = 551194560. Its totient is φ = 48994176.

The previous prime is 190291597. The next prime is 190291637. The reversal of 190291620 is 26192091.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 52942 + ... + 56421.

It is an arithmetic number, because the mean of its divisors is an integer number (11483220).

Almost surely, 2^190291620 is an apocalyptic number.

190291620 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

190291620 is an abundant number, since it is smaller than the sum of its proper divisors (360902940).

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

190291620 is a wasteful number, since it uses less digits than its factorization.

190291620 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 109404 (or 109402 counting only the distinct ones).

The product of its (nonzero) digits is 1944, while the sum is 30.

The square root of 190291620 is about 13794.6228654501. The cubic root of 190291620 is about 575.1836791891.

The spelling of 190291620 in words is "one hundred ninety million, two hundred ninety-one thousand, six hundred twenty".