1926071990 has 16 divisors (see below), whose sum is σ = 3649399920. Its totient is φ = 729879840.

The previous prime is 1926071989. The next prime is 1926071999. The reversal of 1926071990 is 991706291.

It is a super-4 number, since 4×1926071990⁴ (a number of 38 digits) contains 4444 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1926071999) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5068421 + ... + 5068800.

It is an arithmetic number, because the mean of its divisors is an integer number (228087495).

Almost surely, 2^1926071990 is an apocalyptic number.

1926071990 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1926071990 is a deficient number, since it is larger than the sum of its proper divisors (1723327930).

1926071990 is a wasteful number, since it uses less digits than its factorization.

1926071990 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10137247.

The product of its (nonzero) digits is 61236, while the sum is 44.

The square root of 1926071990 is about 43887.0366965007. The cubic root of 1926071990 is about 1244.2018378368.

The spelling of 1926071990 in words is "one billion, nine hundred twenty-six million, seventy-one thousand, nine hundred ninety".