1970542340 has 36 divisors (see below), whose sum is σ = 4458076644. Its totient is φ = 727320576.

The previous prime is 1970542309. The next prime is 1970542349. The reversal of 1970542340 is 432450791.

It can be written as a sum of positive squares in 6 ways, for example, as 122058304 + 1848484036 = 11048^2 + 42994^2 .

It is a super-2 number, since 2×1970542340² = 7766074227465351200, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 1970542340.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1970542349) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 714404 + ... + 717156.

Almost surely, 2^1970542340 is an apocalyptic number.

1970542340 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1970542340 is an abundant number, since it is smaller than the sum of its proper divisors (2487534304).

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

1970542340 is an equidigital number, since it uses as much as digits as its factorization.

1970542340 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5528 (or 2773 counting only the distinct ones).

The product of its (nonzero) digits is 30240, while the sum is 35.

The square root of 1970542340 is about 44390.7911621318. The cubic root of 1970542340 is about 1253.7047084609.

The spelling of 1970542340 in words is "one billion, nine hundred seventy million, five hundred forty-two thousand, three hundred forty".