69144238 has 16 divisors (see below), whose sum is σ = 106170624. Its totient is φ = 33757560.

The previous prime is 69144223. The next prime is 69144241. The reversal of 69144238 is 83244196.

It is a junction number, because it is equal to n+sod(n) for n = 69144197 and 69144206.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 75781 + ... + 76687.

It is an arithmetic number, because the mean of its divisors is an integer number (6635664).

Almost surely, 2^69144238 is an apocalyptic number.

69144238 is a deficient number, since it is larger than the sum of its proper divisors (37026386).

69144238 is a wasteful number, since it uses less digits than its factorization.

69144238 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1767.

The product of its digits is 41472, while the sum is 37.

The square root of 69144238 is about 8315.3014377111. The cubic root of 69144238 is about 410.4421919632.

The spelling of 69144238 in words is "sixty-nine million, one hundred forty-four thousand, two hundred thirty-eight".