870774940 has 192 divisors, whose sum is σ = 2355978240. Its totient is φ = 263450880.

The previous prime is 870774937. The next prime is 870774941. The reversal of 870774940 is 49477078.

It is a super-2 number, since 2×870774940² = 1516497992264007200, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (46).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (870774941) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 2630575 + ... + 2630905.

It is an arithmetic number, because the mean of its divisors is an integer number (12270720).

Almost surely, 2^870774940 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 870774940, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1177989120).

870774940 is an abundant number, since it is smaller than the sum of its proper divisors (1485203300).

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

870774940 is a wasteful number, since it uses less digits than its factorization.

870774940 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 432 (or 430 counting only the distinct ones).

The product of its (nonzero) digits is 395136, while the sum is 46.

The square root of 870774940 is about 29508.8959468158. The cubic root of 870774940 is about 954.9236308548.

The spelling of 870774940 in words is "eight hundred seventy million, seven hundred seventy-four thousand, nine hundred forty".