2140257070 has 32 divisors (see below), whose sum is σ = 4463137728. Its totient is φ = 723748608.

The previous prime is 2140257061. The next prime is 2140257079. The reversal of 2140257070 is 707520412.

It is an interprime number because it is at equal distance from previous prime (2140257061) and next prime (2140257079).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2140257079) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 204309 + ... + 214528.

It is an arithmetic number, because the mean of its divisors is an integer number (139473054).

Almost surely, 2^2140257070 is an apocalyptic number.

2140257070 is an abundant number, since it is smaller than the sum of its proper divisors (2322880658).

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

2140257070 is a wasteful number, since it uses less digits than its factorization.

2140257070 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 418924.

The product of its (nonzero) digits is 3920, while the sum is 28.

The square root of 2140257070 is about 46262.9124677641. The cubic root of 2140257070 is about 1288.7103410217.

Adding to 2140257070 its reverse (707520412), we get a palindrome (2847777482).

The spelling of 2140257070 in words is "two billion, one hundred forty million, two hundred fifty-seven thousand, seventy".