1947734148 has 24 divisors (see below), whose sum is σ = 4619218240. Its totient is φ = 638601120.

The previous prime is 1947734143. The next prime is 1947734219. The reversal of 1947734148 is 8414377491.

It is a happy number.

It is a super-2 number, since 2×1947734148² = 7587336622570571808, which contains 22 as substring.

It is a Smith number, since the sum of its digits (48) coincides with the sum of the digits of its prime factors.

It is a junction number, because it is equal to n+sod(n) for n = 1947734097 and 1947734106.

It is not an unprimeable number, because it can be changed into a prime (1947734141) 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, 1329688 + ... + 1331151.

Almost surely, 2^1947734148 is an apocalyptic number.

It is an amenable number.

1947734148 is an abundant number, since it is smaller than the sum of its proper divisors (2671484092).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1947734148 is a wasteful number, since it uses less digits than its factorization.

1947734148 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2660907 (or 2660905 counting only the distinct ones).

The product of its digits is 677376, while the sum is 48.

The square root of 1947734148 is about 44133.1411526531. The cubic root of 1947734148 is about 1248.8488918588.

The spelling of 1947734148 in words is "one billion, nine hundred forty-seven million, seven hundred thirty-four thousand, one hundred forty-eight".