423401472 has 384 divisors, whose sum is σ = 1467648000. Its totient is φ = 119439360.

The previous prime is 423401437. The next prime is 423401477. The reversal of 423401472 is 274104324.

It is a tau number, because it is divible by the number of its divisors (384).

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (423401477) 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, 13658097 + ... + 13658127.

It is an arithmetic number, because the mean of its divisors is an integer number (3822000).

Almost surely, 2^423401472 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 423401472, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (733824000).

423401472 is an abundant number, since it is smaller than the sum of its proper divisors (1044246528).

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

423401472 is a wasteful number, since it uses less digits than its factorization.

423401472 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 94 (or 68 counting only the distinct ones).

The product of its (nonzero) digits is 5376, while the sum is 27.

The square root of 423401472 is about 20576.7216047649. The cubic root of 423401472 is about 750.9034871775.

Adding to 423401472 its reverse (274104324), we get a palindrome (697505796).

The spelling of 423401472 in words is "four hundred twenty-three million, four hundred one thousand, four hundred seventy-two".