423967770 has 40 divisors (see below), whose sum is σ = 1140004404. Its totient is φ = 113057856.

The previous prime is 423967769. The next prime is 423967771. The reversal of 423967770 is 77769324.

It is a happy number.

423967770 is a `hidden beast` number, since 423 + 96 + 77 + 70 = 666.

It is an interprime number because it is at equal distance from previous prime (423967769) and next prime (423967771).

It can be written as a sum of positive squares in 2 ways, for example, as 417752721 + 6215049 = 20439^2 + 2493^2 .

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (423967771) 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 19 ways as a sum of consecutive naturals, for example, 260899 + ... + 262518.

Almost surely, 2^423967770 is an apocalyptic number.

423967770 is an abundant number, since it is smaller than the sum of its proper divisors (716036634).

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

423967770 is a wasteful number, since it uses less digits than its factorization.

423967770 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 523436 (or 523427 counting only the distinct ones).

The product of its (nonzero) digits is 444528, while the sum is 45.

The square root of 423967770 is about 20590.4776535174. The cubic root of 423967770 is about 751.2381149704.

The spelling of 423967770 in words is "four hundred twenty-three million, nine hundred sixty-seven thousand, seven hundred seventy".