56423400 has 192 divisors, whose sum is σ = 194987520. Its totient is φ = 13382400.

The previous prime is 56423399. The next prime is 56423401. The reversal of 56423400 is 432465.

It is an interprime number because it is at equal distance from previous prime (56423399) and next prime (56423401).

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

It is not an unprimeable number, because it can be changed into a prime (56423401) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 547749 + ... + 547851.

It is an arithmetic number, because the mean of its divisors is an integer number (1015560).

Almost surely, 2^56423400 is an apocalyptic number.

56423400 is a gapful number since it is divisible by the number (50) 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 56423400, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (97493760).

56423400 is an abundant number, since it is smaller than the sum of its proper divisors (138564120).

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

56423400 is a wasteful number, since it uses less digits than its factorization.

56423400 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 216 (or 207 counting only the distinct ones).

The product of its (nonzero) digits is 2880, while the sum is 24.

The square root of 56423400 is about 7511.5511047985. The cubic root of 56423400 is about 383.5480250837.

Adding to 56423400 its reverse (432465), we get a palindrome (56855865).

The spelling of 56423400 in words is "fifty-six million, four hundred twenty-three thousand, four hundred".