421291460 has 24 divisors (see below), whose sum is σ = 923178816. Its totient is φ = 161189600.

The previous prime is 421291397. The next prime is 421291463. The reversal of 421291460 is 64192124.

It is not an unprimeable number, because it can be changed into a prime (421291463) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 457466 + ... + 458385.

It is an arithmetic number, because the mean of its divisors is an integer number (38465784).

Almost surely, 2^421291460 is an apocalyptic number.

It is an amenable number.

421291460 is an abundant number, since it is smaller than the sum of its proper divisors (501887356).

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

421291460 is a wasteful number, since it uses less digits than its factorization.

421291460 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 915883 (or 915881 counting only the distinct ones).

The product of its (nonzero) digits is 3456, while the sum is 29.

The square root of 421291460 is about 20525.3857454616. The cubic root of 421291460 is about 749.6540389577.

It can be divided in two parts, 42 and 1291460, that multiplied together give a triangular number (54241320 = T₁₀₄₁₅).

The spelling of 421291460 in words is "four hundred twenty-one million, two hundred ninety-one thousand, four hundred sixty".