1919222240590 has 16 divisors (see below), whose sum is σ = 3455599401072. Its totient is φ = 767466814464.

The previous prime is 1919222240539. The next prime is 1919222240597. The reversal of 1919222240590 is 950422229191.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 1919222240590.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1919222240597) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 27723924 + ... + 27793063.

It is an arithmetic number, because the mean of its divisors is an integer number (215974962567).

Almost surely, 2^{1919222240590} is an apocalyptic number.

1919222240590 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1919222240590 is a deficient number, since it is larger than the sum of its proper divisors (1536377160482).

1919222240590 is a wasteful number, since it uses less digits than its factorization.

1919222240590 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 55520451.

The product of its (nonzero) digits is 233280, while the sum is 46.

The spelling of 1919222240590 in words is "one trillion, nine hundred nineteen billion, two hundred twenty-two million, two hundred forty thousand, five hundred ninety".