69303780 has 144 divisors (see below), whose sum is σ = 258795264. Its totient is φ = 14618880.

The previous prime is 69303769. The next prime is 69303797. The reversal of 69303780 is 8730396.

It is a Smith number, since the sum of its digits (36) coincides with the sum of the digits of its prime factors.

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

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 47 ways as a sum of consecutive naturals, for example, 14265 + ... + 18495.

Almost surely, 2^69303780 is an apocalyptic number.

69303780 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 69303780, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (129397632).

69303780 is an abundant number, since it is smaller than the sum of its proper divisors (189491484).

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

69303780 is a wasteful number, since it uses less digits than its factorization.

69303780 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4266 (or 4261 counting only the distinct ones).

The product of its (nonzero) digits is 27216, while the sum is 36.

The square root of 69303780 is about 8324.8891884517. The cubic root of 69303780 is about 410.7576314465.

The spelling of 69303780 in words is "sixty-nine million, three hundred three thousand, seven hundred eighty".