69564040 has 128 divisors (see below), whose sum is σ = 199584000. Its totient is φ = 21224448.

The previous prime is 69563993. The next prime is 69564059. The reversal of 69564040 is 4046596.

It is a super-2 number, since 2×69564040² = 9678311322243200, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 69563987 and 69564005.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 105231 + ... + 105889.

It is an arithmetic number, because the mean of its divisors is an integer number (1559250).

Almost surely, 2^69564040 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 69564040, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (99792000).

69564040 is an abundant number, since it is smaller than the sum of its proper divisors (130019960).

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

69564040 is a wasteful number, since it uses less digits than its factorization.

69564040 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 719 (or 715 counting only the distinct ones).

The product of its (nonzero) digits is 25920, while the sum is 34.

The square root of 69564040 is about 8340.5059798552. The cubic root of 69564040 is about 411.2711687997.

The spelling of 69564040 in words is "sixty-nine million, five hundred sixty-four thousand, forty".