69243516 has 36 divisors (see below), whose sum is σ = 185329872. Its totient is φ = 21723264.

The previous prime is 69243511. The next prime is 69243523. The reversal of 69243516 is 61534296.

It is a happy number.

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

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (69243511) 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, 55960 + ... + 57183.

It is an arithmetic number, because the mean of its divisors is an integer number (5148052).

Almost surely, 2^69243516 is an apocalyptic number.

It is an amenable number.

69243516 is an abundant number, since it is smaller than the sum of its proper divisors (116086356).

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

69243516 is a wasteful number, since it uses less digits than its factorization.

69243516 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 113170 (or 113165 counting only the distinct ones).

The product of its digits is 38880, while the sum is 36.

The square root of 69243516 is about 8321.2688936243. The cubic root of 69243516 is about 410.6385370460.

It can be divided in two parts, 6924 and 3516, that added together give a triangular number (10440 = T₁₄₄).

The spelling of 69243516 in words is "sixty-nine million, two hundred forty-three thousand, five hundred sixteen".