421377941 has 24 divisors (see below), whose sum is σ = 457158240. Its totient is φ = 387791712.

The previous prime is 421377919. The next prime is 421377961. The reversal of 421377941 is 149773124.

It is a happy number.

It is not a de Polignac number, because 421377941 - 2²⁶ = 354269077 is a prime.

It is a super-2 number, since 2×421377941² = 355118738322798962, which contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 421377895 and 421377904.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (421377911) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 6289190 + ... + 6289256.

It is an arithmetic number, because the mean of its divisors is an integer number (19048260).

Almost surely, 2^421377941 is an apocalyptic number.

It is an amenable number.

421377941 is a deficient number, since it is larger than the sum of its proper divisors (35780299).

421377941 is an equidigital number, since it uses as much as digits as its factorization.

421377941 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 273 (or 206 counting only the distinct ones).

The product of its digits is 42336, while the sum is 38.

The square root of 421377941 is about 20527.4923212749. The cubic root of 421377941 is about 749.7053307604.

The spelling of 421377941 in words is "four hundred twenty-one million, three hundred seventy-seven thousand, nine hundred forty-one".