69305040 has 120 divisors (see below), whose sum is σ = 266018688. Its totient is φ = 15840000.

The previous prime is 69305029. The next prime is 69305051. The reversal of 69305040 is 4050396.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (69305029) and next prime (69305051).

It is a tau number, because it is divible by the number of its divisors (120).

It is a junction number, because it is equal to n+sod(n) for n = 69304995 and 69305013.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1836 + ... + 11915.

Almost surely, 2^69305040 is an apocalyptic number.

69305040 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 69305040, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (133009344).

69305040 is an abundant number, since it is smaller than the sum of its proper divisors (196713648).

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

69305040 is a wasteful number, since it uses less digits than its factorization.

69305040 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13777 (or 13768 counting only the distinct ones).

The product of its (nonzero) digits is 3240, while the sum is 27.

The square root of 69305040 is about 8324.9648647907. The cubic root of 69305040 is about 410.7601207358.

The spelling of 69305040 in words is "sixty-nine million, three hundred five thousand, forty".