1900069390 has 16 divisors (see below), whose sum is σ = 3420642960. Its totient is φ = 759912640.

The previous prime is 1900069373. The next prime is 1900069403. The reversal of 1900069390 is 939600091.

It is a super-2 number, since 2×1900069390² = 7220527373629944200, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 93330 + ... + 111850.

It is an arithmetic number, because the mean of its divisors is an integer number (213790185).

Almost surely, 2^1900069390 is an apocalyptic number.

1900069390 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1900069390 is a deficient number, since it is larger than the sum of its proper divisors (1520573570).

1900069390 is a wasteful number, since it uses less digits than its factorization.

1900069390 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28787.

The product of its (nonzero) digits is 13122, while the sum is 37.

The square root of 1900069390 is about 43589.7853860282. The cubic root of 1900069390 is about 1238.5774073133.

It can be divided in two parts, 190006 and 9390, that added together give a triangular number (199396 = T₆₃₁).

The spelling of 1900069390 in words is "one billion, nine hundred million, sixty-nine thousand, three hundred ninety".