923420400 has 240 divisors, whose sum is σ = 3403139328. Its totient is φ = 209664000.

The previous prime is 923420371. The next prime is 923420411. The reversal of 923420400 is 4024329.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (240).

It is a Harshad number since it is a multiple of its sum of digits (24).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 1772140 + ... + 1772660.

Almost surely, 2^923420400 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 923420400, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1701569664).

923420400 is an abundant number, since it is smaller than the sum of its proper divisors (2479718928).

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

923420400 is a wasteful number, since it uses less digits than its factorization.

923420400 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 760 (or 749 counting only the distinct ones).

The product of its (nonzero) digits is 1728, while the sum is 24.

The square root of 923420400 is about 30387.8330915516. The cubic root of 923420400 is about 973.7926409612.

Adding to 923420400 its reverse (4024329), we get a palindrome (927444729).

The spelling of 923420400 in words is "nine hundred twenty-three million, four hundred twenty thousand, four hundred".