421776141 has 8 divisors (see below), whose sum is σ = 562599840. Its totient is φ = 281068272.

The previous prime is 421776127. The next prime is 421776161. The reversal of 421776141 is 141677124.

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

It is not a de Polignac number, because 421776141 - 2⁵ = 421776109 is a prime.

It is a super-2 number, since 2×421776141² = 355790226233703762, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (421776161) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 20070 + ... + 35303.

It is an arithmetic number, because the mean of its divisors is an integer number (70324980).

Almost surely, 2^421776141 is an apocalyptic number.

It is an amenable number.

421776141 is a deficient number, since it is larger than the sum of its proper divisors (140823699).

421776141 is a wasteful number, since it uses less digits than its factorization.

421776141 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 57915.

The product of its digits is 9408, while the sum is 33.

The square root of 421776141 is about 20537.1892185859. The cubic root of 421776141 is about 749.9414123123.

The spelling of 421776141 in words is "four hundred twenty-one million, seven hundred seventy-six thousand, one hundred forty-one".