421023150 has 48 divisors (see below), whose sum is σ = 1160156400. Its totient is φ = 112272480.

The previous prime is 421023107. The next prime is 421023151. The reversal of 421023150 is 51320124.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (421023151) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 154585 + ... + 157284.

It is an arithmetic number, because the mean of its divisors is an integer number (24169925).

Almost surely, 2^421023150 is an apocalyptic number.

421023150 is an abundant number, since it is smaller than the sum of its proper divisors (739133250).

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

421023150 is a wasteful number, since it uses less digits than its factorization.

421023150 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 311890 (or 311879 counting only the distinct ones).

The product of its (nonzero) digits is 240, while the sum is 18.

The square root of 421023150 is about 20518.8486519103. The cubic root of 421023150 is about 749.4948598543.

Adding to 421023150 its reverse (51320124), we get a palindrome (472343274).

The spelling of 421023150 in words is "four hundred twenty-one million, twenty-three thousand, one hundred fifty".