69982290 has 96 divisors (see below), whose sum is σ = 212284800. Its totient is φ = 15988896.

The previous prime is 69982277. The next prime is 69982291. The reversal of 69982290 is 9228996.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (69982291) 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, 29737 + ... + 32003.

It is an arithmetic number, because the mean of its divisors is an integer number (2211300).

Almost surely, 2^69982290 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 69982290, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (106142400).

69982290 is an abundant number, since it is smaller than the sum of its proper divisors (142302510).

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

69982290 is a wasteful number, since it uses less digits than its factorization.

69982290 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2301 (or 2284 counting only the distinct ones).

The product of its (nonzero) digits is 139968, while the sum is 45.

The square root of 69982290 is about 8365.5418234565. The cubic root of 69982290 is about 412.0937708766.

The spelling of 69982290 in words is "sixty-nine million, nine hundred eighty-two thousand, two hundred ninety".