69240427 has 8 divisors (see below), whose sum is σ = 73884560. Its totient is φ = 64696320.

The previous prime is 69240421. The next prime is 69240463. The reversal of 69240427 is 72404296.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-69240427 is a prime.

It is a super-2 number, since 2×69240427² = 9588473462284658, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 69240392 and 69240401.

It is not an unprimeable number, because it can be changed into a prime (69240421) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 23574 + ... + 26347.

It is an arithmetic number, because the mean of its divisors is an integer number (9235570).

Almost surely, 2^69240427 is an apocalyptic number.

69240427 is a deficient number, since it is larger than the sum of its proper divisors (4644133).

69240427 is a wasteful number, since it uses less digits than its factorization.

69240427 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 50013.

The product of its (nonzero) digits is 24192, while the sum is 34.

The square root of 69240427 is about 8321.0832828424. The cubic root of 69240427 is about 410.6324306677.

The spelling of 69240427 in words is "sixty-nine million, two hundred forty thousand, four hundred twenty-seven".