869970140 has 24 divisors (see below), whose sum is σ = 1967471520. Its totient is φ = 321219648.

The previous prime is 869970131. The next prime is 869970149. The reversal of 869970140 is 41079968.

It is an interprime number because it is at equal distance from previous prime (869970131) and next prime (869970149).

It is a junction number, because it is equal to n+sod(n) for n = 869970091 and 869970100.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (869970149) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1672760 + ... + 1673279.

It is an arithmetic number, because the mean of its divisors is an integer number (81977980).

Almost surely, 2^869970140 is an apocalyptic number.

It is an amenable number.

869970140 is an abundant number, since it is smaller than the sum of its proper divisors (1097501380).

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

869970140 is a wasteful number, since it uses less digits than its factorization.

869970140 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3346061 (or 3346059 counting only the distinct ones).

The product of its (nonzero) digits is 108864, while the sum is 44.

The square root of 869970140 is about 29495.2562287565. The cubic root of 869970140 is about 954.6293491411.

The spelling of 869970140 in words is "eight hundred sixty-nine million, nine hundred seventy thousand, one hundred forty".