69000390 has 64 divisors (see below), whose sum is σ = 186278400. Its totient is φ = 18172512.

The previous prime is 69000377. The next prime is 69000443. The reversal of 69000390 is 9300096.

It is a super-2 number, since 2×69000390² = 9522107640304200, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 20871 + ... + 23949.

It is an arithmetic number, because the mean of its divisors is an integer number (2910600).

Almost surely, 2^69000390 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 69000390, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (93139200).

69000390 is an abundant number, since it is smaller than the sum of its proper divisors (117278010).

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

69000390 is a wasteful number, since it uses less digits than its factorization.

69000390 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3178 (or 3172 counting only the distinct ones).

The product of its (nonzero) digits is 1458, while the sum is 27.

The square root of 69000390 is about 8306.6473381263. The cubic root of 69000390 is about 410.1573657276.

The spelling of 69000390 in words is "sixty-nine million, three hundred ninety", and thus it is an aban number.