421155192 has 32 divisors (see below), whose sum is σ = 1054432080. Its totient is φ = 140179200.

The previous prime is 421155149. The next prime is 421155199. The reversal of 421155192 is 291551124.

It is a Smith number, since the sum of its digits (30) coincides with the sum of the digits of its prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (421155199) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4308 + ... + 29340.

Almost surely, 2^421155192 is an apocalyptic number.

It is an amenable number.

421155192 is an abundant number, since it is smaller than the sum of its proper divisors (633276888).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

421155192 is a wasteful number, since it uses less digits than its factorization.

421155192 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25743 (or 25739 counting only the distinct ones).

The product of its digits is 3600, while the sum is 30.

The square root of 421155192 is about 20522.0659778688. The cubic root of 421155192 is about 749.5732042844.

The spelling of 421155192 in words is "four hundred twenty-one million, one hundred fifty-five thousand, one hundred ninety-two".