69225840 has 140 divisors (see below), whose sum is σ = 241518024. Its totient is φ = 18444672.

The previous prime is 69225839. The next prime is 69225851. The reversal of 69225840 is 4852296.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a junction number, because it is equal to n+sod(n) for n = 69225795 and 69225804.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 27 ways as a sum of consecutive naturals, for example, 57727 + ... + 58913.

Almost surely, 2^69225840 is an apocalyptic number.

69225840 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 69225840, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (120759012).

69225840 is an abundant number, since it is smaller than the sum of its proper divisors (172292184).

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

69225840 is a wasteful number, since it uses less digits than its factorization.

69225840 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1218 (or 1197 counting only the distinct ones).

The product of its (nonzero) digits is 34560, while the sum is 36.

The square root of 69225840 is about 8320.2067282009. The cubic root of 69225840 is about 410.6035924287.

The spelling of 69225840 in words is "sixty-nine million, two hundred twenty-five thousand, eight hundred forty".