421254730 has 32 divisors (see below), whose sum is σ = 864625104. Its totient is φ = 146390016.

The previous prime is 421254721. The next prime is 421254733. The reversal of 421254730 is 37452124.

It can be written as a sum of positive squares in 8 ways, for example, as 170380809 + 250873921 = 13053^2 + 15839^2 .

It is not an unprimeable number, because it can be changed into a prime (421254733) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 93097 + ... + 97516.

Almost surely, 2^421254730 is an apocalyptic number.

421254730 is an abundant number, since it is smaller than the sum of its proper divisors (443370374).

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

421254730 is a wasteful number, since it uses less digits than its factorization.

421254730 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 190650.

The product of its (nonzero) digits is 6720, while the sum is 28.

The square root of 421254730 is about 20524.4909802899. The cubic root of 421254730 is about 749.6322523042.

The spelling of 421254730 in words is "four hundred twenty-one million, two hundred fifty-four thousand, seven hundred thirty".