69343890 has 96 divisors (see below), whose sum is σ = 209139840. Its totient is φ = 14403840.

The previous prime is 69343889. The next prime is 69343891. The reversal of 69343890 is 9834396.

It is an interprime number because it is at equal distance from previous prime (69343889) and next prime (69343891).

It is a Harshad number since it is a multiple of its sum of digits (42).

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (69343891) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 24046 + ... + 26774.

It is an arithmetic number, because the mean of its divisors is an integer number (2178540).

Almost surely, 2^69343890 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 69343890, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (104569920).

69343890 is an abundant number, since it is smaller than the sum of its proper divisors (139795950).

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

69343890 is a wasteful number, since it uses less digits than its factorization.

69343890 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2768 (or 2757 counting only the distinct ones).

The product of its (nonzero) digits is 139968, while the sum is 42.

The square root of 69343890 is about 8327.2978810656. The cubic root of 69343890 is about 410.8368590210.

The spelling of 69343890 in words is "sixty-nine million, three hundred forty-three thousand, eight hundred ninety".