1947014690 has 16 divisors (see below), whose sum is σ = 3510547128. Its totient is φ = 777490176.

The previous prime is 1947014669. The next prime is 1947014701. The reversal of 1947014690 is 964107491.

It can be written as a sum of positive squares in 4 ways, for example, as 1946486161 + 528529 = 44119^2 + 727^2 .

It is a super-2 number, since 2×1947014690² = 7581732406151592200, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 158237 + ... + 170096.

Almost surely, 2^1947014690 is an apocalyptic number.

1947014690 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1947014690 is a deficient number, since it is larger than the sum of its proper divisors (1563532438).

1947014690 is a wasteful number, since it uses less digits than its factorization.

1947014690 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 328933.

The product of its (nonzero) digits is 54432, while the sum is 41.

The square root of 1947014690 is about 44124.9894050979. The cubic root of 1947014690 is about 1248.6951054742.

The spelling of 1947014690 in words is "one billion, nine hundred forty-seven million, fourteen thousand, six hundred ninety".