69109380 has 36 divisors (see below), whose sum is σ = 209632332. Its totient is φ = 18429120.

The previous prime is 69109357. The next prime is 69109387. The reversal of 69109380 is 8390196.

It can be written as a sum of positive squares in 2 ways, for example, as 19660356 + 49449024 = 4434^2 + 7032^2 .

It is a tau number, because it is divible by the number of its divisors (36).

It is a super-2 number, since 2×69109380² = 9552212807968800, which contains 22 as substring.

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

It is not an unprimeable number, because it can be changed into a prime (69109387) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 191791 + ... + 192150.

Almost surely, 2^69109380 is an apocalyptic number.

69109380 is a gapful number since it is divisible by the number (60) formed by its first and last digit.

It is an amenable number.

69109380 is an abundant number, since it is smaller than the sum of its proper divisors (140522952).

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

69109380 is a wasteful number, since it uses less digits than its factorization.

69109380 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 383956 (or 383951 counting only the distinct ones).

The product of its (nonzero) digits is 11664, while the sum is 36.

The square root of 69109380 is about 8313.2051580603. The cubic root of 69109380 is about 410.3732076715.

It can be divided in two parts, 6910 and 9380, that added together give a triangular number (16290 = T₁₈₀).

The spelling of 69109380 in words is "sixty-nine million, one hundred nine thousand, three hundred eighty".