69286740 has 48 divisors (see below), whose sum is σ = 196354368. Its totient is φ = 18252544.

The previous prime is 69286739. The next prime is 69286759. The reversal of 69286740 is 4768296.

It is a junction number, because it is equal to n+sod(n) for n = 69286692 and 69286701.

It is a congruent number.

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 15 ways as a sum of consecutive naturals, for example, 1977 + ... + 11936.

It is an arithmetic number, because the mean of its divisors is an integer number (4090716).

Almost surely, 2^69286740 is an apocalyptic number.

69286740 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 69286740, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (98177184).

69286740 is an abundant number, since it is smaller than the sum of its proper divisors (127067628).

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

69286740 is a wasteful number, since it uses less digits than its factorization.

69286740 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14008 (or 14006 counting only the distinct ones).

The product of its (nonzero) digits is 145152, while the sum is 42.

The square root of 69286740 is about 8323.8656884887. The cubic root of 69286740 is about 410.7239638083.

The spelling of 69286740 in words is "sixty-nine million, two hundred eighty-six thousand, seven hundred forty".