434423000 has 128 divisors (see below), whose sum is σ = 1126232640. Its totient is φ = 155520000.

The previous prime is 434422991. The next prime is 434423009. The reversal of 434423000 is 324434.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (434422991) and next prime (434423009).

It is a Harshad number since it is a multiple of its sum of digits (20).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (434423009) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 802730 + ... + 803270.

Almost surely, 2^434423000 is an apocalyptic number.

434423000 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 434423000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (563116320).

434423000 is an abundant number, since it is smaller than the sum of its proper divisors (691809640).

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

434423000 is a wasteful number, since it uses less digits than its factorization.

434423000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 646 (or 632 counting only the distinct ones).

The product of its (nonzero) digits is 1152, while the sum is 20.

The square root of 434423000 is about 20842.8165083321. The cubic root of 434423000 is about 757.3633238870.

Adding to 434423000 its reverse (324434), we get a palindrome (434747434).

The spelling of 434423000 in words is "four hundred thirty-four million, four hundred twenty-three thousand".