268154990 has 8 divisors (see below), whose sum is σ = 482679000. Its totient is φ = 107261992.

The previous prime is 268154981. The next prime is 268155031. The reversal of 268154990 is 99451862.

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

It is a congruent number.

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, 13407740 + ... + 13407759.

It is an arithmetic number, because the mean of its divisors is an integer number (60334875).

Almost surely, 2^268154990 is an apocalyptic number.

268154990 is a deficient number, since it is larger than the sum of its proper divisors (214524010).

268154990 is a wasteful number, since it uses less digits than its factorization.

268154990 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26815506.

The product of its (nonzero) digits is 155520, while the sum is 44.

The square root of 268154990 is about 16375.4386200798. The cubic root of 268154990 is about 644.8548358292.

The spelling of 268154990 in words is "two hundred sixty-eight million, one hundred fifty-four thousand, nine hundred ninety".