421166361 has 16 divisors (see below), whose sum is σ = 700121088. Its totient is φ = 218787600.

The previous prime is 421166353. The next prime is 421166393. The reversal of 421166361 is 163661124.

It is not a de Polignac number, because 421166361 - 2³ = 421166353 is a prime.

It is a super-2 number, since 2×421166361² = 354762207275964642, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (421166311) 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, 911385 + ... + 911846.

It is an arithmetic number, because the mean of its divisors is an integer number (43757568).

Almost surely, 2^421166361 is an apocalyptic number.

It is an amenable number.

421166361 is a deficient number, since it is larger than the sum of its proper divisors (278954727).

421166361 is a wasteful number, since it uses less digits than its factorization.

421166361 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1823252.

The product of its digits is 5184, while the sum is 30.

The square root of 421166361 is about 20522.3380977899. The cubic root of 421166361 is about 749.5798304318.

The spelling of 421166361 in words is "four hundred twenty-one million, one hundred sixty-six thousand, three hundred sixty-one".