1947970402 has 64 divisors (see below), whose sum is σ = 3624192000. Its totient is φ = 782686800.

The previous prime is 1947970379. The next prime is 1947970403. The reversal of 1947970402 is 2040797491.

It is not an unprimeable number, because it can be changed into a prime (1947970403) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1341777 + ... + 1343227.

It is an arithmetic number, because the mean of its divisors is an integer number (56628000).

Almost surely, 2^1947970402 is an apocalyptic number.

1947970402 is a deficient number, since it is larger than the sum of its proper divisors (1676221598).

1947970402 is a wasteful number, since it uses less digits than its factorization.

1947970402 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1596 (or 1582 counting only the distinct ones).

The product of its (nonzero) digits is 127008, while the sum is 43.

The square root of 1947970402 is about 44135.8176768030. The cubic root of 1947970402 is about 1248.8993836260.

The spelling of 1947970402 in words is "one billion, nine hundred forty-seven million, nine hundred seventy thousand, four hundred two".