421802949 has 8 divisors (see below), whose sum is σ = 562575712. Its totient is φ = 281116080.

The previous prime is 421802933. The next prime is 421802981. The reversal of 421802949 is 949208124.

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

It is not a de Polignac number, because 421802949 - 2⁴ = 421802933 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (421802149) 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, 8974 + ... + 30399.

It is an arithmetic number, because the mean of its divisors is an integer number (70321964).

Almost surely, 2^421802949 is an apocalyptic number.

It is an amenable number.

421802949 is a deficient number, since it is larger than the sum of its proper divisors (140772763).

421802949 is a wasteful number, since it uses less digits than its factorization.

421802949 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 42947.

The product of its (nonzero) digits is 41472, while the sum is 39.

The square root of 421802949 is about 20537.8418778605. The cubic root of 421802949 is about 749.9573006802.

The spelling of 421802949 in words is "four hundred twenty-one million, eight hundred two thousand, nine hundred forty-nine".