869970240 has 224 divisors, whose sum is σ = 3250143360. Its totient is φ = 218308608.

The previous prime is 869970221. The next prime is 869970263. The reversal of 869970240 is 42079968.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 143919 + ... + 149841.

Almost surely, 2^869970240 is an apocalyptic number.

869970240 is a gapful number since it is divisible by the number (80) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 869970240, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1625071680).

869970240 is an abundant number, since it is smaller than the sum of its proper divisors (2380173120).

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

869970240 is a wasteful number, since it uses less digits than its factorization.

869970240 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5966 (or 5950 counting only the distinct ones).

The product of its (nonzero) digits is 217728, while the sum is 45.

The square root of 869970240 is about 29495.2579239443. The cubic root of 869970240 is about 954.6293857182.

The spelling of 869970240 in words is "eight hundred sixty-nine million, nine hundred seventy thousand, two hundred forty".