69795840 has 136 divisors (see below), whose sum is σ = 226490688. Its totient is φ = 18350080.

The previous prime is 69795839. The next prime is 69795853. The reversal of 69795840 is 4859796.

It is a Smith number, since the sum of its digits (48) coincides with the sum of the digits of its prime factors.

It is a Harshad number since it is a multiple of its sum of digits (48).

It is a self number, because there is not a number n which added to its sum of digits gives 69795840.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 983005 + ... + 983075.

Almost surely, 2^69795840 is an apocalyptic number.

69795840 is a gapful number since it is divisible by the number (60) 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 69795840, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (113245344).

69795840 is an abundant number, since it is smaller than the sum of its proper divisors (156694848).

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

69795840 is an frugal number, since it uses more digits than its factorization.

69795840 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 111 (or 81 counting only the distinct ones).

The product of its (nonzero) digits is 544320, while the sum is 48.

The square root of 69795840 is about 8354.3904625053. The cubic root of 69795840 is about 411.7274723916.

The spelling of 69795840 in words is "sixty-nine million, seven hundred ninety-five thousand, eight hundred forty".