68228432 has 30 divisors (see below), whose sum is σ = 133808958. Its totient is φ = 33700992.

The previous prime is 68228423. The next prime is 68228467. The reversal of 68228432 is 23482286.

It can be written as a sum of positive squares in 3 ways, for example, as 11316496 + 56911936 = 3364^2 + 7544^2 .

It is a junction number, because it is equal to n+sod(n) for n = 68228392 and 68228401.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 394298 + ... + 394470.

Almost surely, 2^68228432 is an apocalyptic number.

It is an amenable number.

68228432 is a deficient number, since it is larger than the sum of its proper divisors (65580526).

68228432 is a wasteful number, since it uses less digits than its factorization.

68228432 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 495 (or 332 counting only the distinct ones).

The product of its digits is 36864, while the sum is 35.

The square root of 68228432 is about 8260.0503630426. The cubic root of 68228432 is about 408.6220486895.

The spelling of 68228432 in words is "sixty-eight million, two hundred twenty-eight thousand, four hundred thirty-two".