421419477 has 16 divisors (see below), whose sum is σ = 605033280. Its totient is φ = 259936512.

The previous prime is 421419473. The next prime is 421419497. The reversal of 421419477 is 774914124.

It is not a de Polignac number, because 421419477 - 2² = 421419473 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (421419473) 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, 67018 + ... + 73035.

It is an arithmetic number, because the mean of its divisors is an integer number (37814580).

Almost surely, 2^421419477 is an apocalyptic number.

It is an amenable number.

421419477 is a deficient number, since it is larger than the sum of its proper divisors (183613803).

421419477 is a wasteful number, since it uses less digits than its factorization.

421419477 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 140132.

The product of its digits is 56448, while the sum is 39.

The square root of 421419477 is about 20528.5040127136. The cubic root of 421419477 is about 749.7299632296.

The spelling of 421419477 in words is "four hundred twenty-one million, four hundred nineteen thousand, four hundred seventy-seven".