68925490 has 8 divisors (see below), whose sum is σ = 124065900. Its totient is φ = 27570192.

The previous prime is 68925481. The next prime is 68925523. The reversal of 68925490 is 9452986.

It can be written as a sum of positive squares in 2 ways, for example, as 66113161 + 2812329 = 8131^2 + 1677^2 .

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

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3446265 + ... + 3446284.

Almost surely, 2^68925490 is an apocalyptic number.

68925490 is a deficient number, since it is larger than the sum of its proper divisors (55140410).

68925490 is a wasteful number, since it uses less digits than its factorization.

68925490 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6892556.

The product of its (nonzero) digits is 155520, while the sum is 43.

The square root of 68925490 is about 8302.1376765264. The cubic root of 68925490 is about 410.0089032372.

The spelling of 68925490 in words is "sixty-eight million, nine hundred twenty-five thousand, four hundred ninety".