254916690 has 64 divisors (see below), whose sum is σ = 703918080. Its totient is φ = 57873600.

The previous prime is 254916653. The next prime is 254916691. The reversal of 254916690 is 96619452.

It is a happy number.

254916690 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×254916690² = 129965037681112200, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (42).

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (254916691) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 27691 + ... + 35729.

It is an arithmetic number, because the mean of its divisors is an integer number (10998720).

Almost surely, 2^254916690 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 254916690, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (351959040).

254916690 is an abundant number, since it is smaller than the sum of its proper divisors (449001390).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

254916690 is a wasteful number, since it uses less digits than its factorization.

254916690 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8207.

The product of its (nonzero) digits is 116640, while the sum is 42.

The square root of 254916690 is about 15966.1106722959. The cubic root of 254916690 is about 634.0635047362.

The spelling of 254916690 in words is "two hundred fifty-four million, nine hundred sixteen thousand, six hundred ninety".