190344540 has 48 divisors (see below), whose sum is σ = 533570688. Its totient is φ = 50700864.

The previous prime is 190344523. The next prime is 190344551. The reversal of 190344540 is 45443091.

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

It is a junction number, because it is equal to n+sod(n) for n = 190344498 and 190344507.

It is a congruent number.

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, 90339 + ... + 92421.

It is an arithmetic number, because the mean of its divisors is an integer number (11116056).

Almost surely, 2^190344540 is an apocalyptic number.

190344540 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

190344540 is an abundant number, since it is smaller than the sum of its proper divisors (343226148).

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

190344540 is a wasteful number, since it uses less digits than its factorization.

190344540 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3618 (or 3616 counting only the distinct ones).

The product of its (nonzero) digits is 8640, while the sum is 30.

The square root of 190344540 is about 13796.5408708125. The cubic root of 190344540 is about 575.2369936739.

The spelling of 190344540 in words is "one hundred ninety million, three hundred forty-four thousand, five hundred forty".