305250421 has 8 divisors (see below), whose sum is σ = 356970944. Its totient is φ = 255558240.

The previous prime is 305250401. The next prime is 305250427. The reversal of 305250421 is 124052503.

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

It is not a de Polignac number, because 305250421 - 2⁵ = 305250389 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 305250392 and 305250401.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (305250427) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 506760 + ... + 507361.

It is an arithmetic number, because the mean of its divisors is an integer number (44621368).

Almost surely, 2^305250421 is an apocalyptic number.

It is an amenable number.

305250421 is a deficient number, since it is larger than the sum of its proper divisors (51720523).

305250421 is a wasteful number, since it uses less digits than its factorization.

305250421 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1014171.

The product of its (nonzero) digits is 1200, while the sum is 22.

The square root of 305250421 is about 17471.4172579101. The cubic root of 305250421 is about 673.3157247680.

The spelling of 305250421 in words is "three hundred five million, two hundred fifty thousand, four hundred twenty-one".