69140268 has 72 divisors (see below), whose sum is σ = 180857040. Its totient is φ = 22256640.

The previous prime is 69140237. The next prime is 69140299. The reversal of 69140268 is 86204196.

It is an interprime number because it is at equal distance from previous prime (69140237) and next prime (69140299).

It is a super-2 number, since 2×69140268² = 9560753318223648, which contains 22 as substring.

It is a hoax number, since the sum of its digits (36) coincides with the sum of the digits of its distinct 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 polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 204996 + ... + 205332.

Almost surely, 2^69140268 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 69140268, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (90428520).

69140268 is an abundant number, since it is smaller than the sum of its proper divisors (111716772).

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

69140268 is a wasteful number, since it uses less digits than its factorization.

69140268 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 527 (or 522 counting only the distinct ones).

The product of its (nonzero) digits is 20736, while the sum is 36.

The square root of 69140268 is about 8315.0627177430. The cubic root of 69140268 is about 410.4343364680.

The spelling of 69140268 in words is "sixty-nine million, one hundred forty thousand, two hundred sixty-eight".