1946983690 has 16 divisors (see below), whose sum is σ = 3526895592. Its totient is φ = 773832384.

The previous prime is 1946983679. The next prime is 1946983691. The reversal of 1946983690 is 963896491.

It can be written as a sum of positive squares in 4 ways, for example, as 994582369 + 952401321 = 31537^2 + 30861^2 .

It is a super-2 number, since 2×1946983690² = 7581490978252032200, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (1946983691) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 618489 + ... + 621628.

Almost surely, 2^1946983690 is an apocalyptic number.

1946983690 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1946983690 is a deficient number, since it is larger than the sum of its proper divisors (1579911902).

1946983690 is a wasteful number, since it uses less digits than its factorization.

1946983690 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1240281.

The product of its (nonzero) digits is 2519424, while the sum is 55.

The square root of 1946983690 is about 44124.6381288278. The cubic root of 1946983690 is about 1248.6884782765.

The spelling of 1946983690 in words is "one billion, nine hundred forty-six million, nine hundred eighty-three thousand, six hundred ninety".