421142355 has 16 divisors (see below), whose sum is σ = 748697760. Its totient is φ = 224609184.

The previous prime is 421142333. The next prime is 421142357. The reversal of 421142355 is 553241124.

421142355 is a `hidden beast` number, since 421 + 1 + 4 + 235 + 5 = 666.

It is not a de Polignac number, because 421142355 - 2⁶ = 421142291 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is not an unprimeable number, because it can be changed into a prime (421142357) 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, 1559652 + ... + 1559921.

It is an arithmetic number, because the mean of its divisors is an integer number (46793610).

Almost surely, 2^421142355 is an apocalyptic number.

421142355 is a gapful number since it is divisible by the number (45) formed by its first and last digit.

421142355 is a deficient number, since it is larger than the sum of its proper divisors (327555405).

421142355 is a wasteful number, since it uses less digits than its factorization.

421142355 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3119587 (or 3119581 counting only the distinct ones).

The product of its digits is 4800, while the sum is 27.

The square root of 421142355 is about 20521.7532145770. The cubic root of 421142355 is about 749.5655884307.

Adding to 421142355 its reverse (553241124), we get a palindrome (974383479).

The spelling of 421142355 in words is "four hundred twenty-one million, one hundred forty-two thousand, three hundred fifty-five".