42455400 has 96 divisors (see below), whose sum is σ = 141761760. Its totient is φ = 10448640.

The previous prime is 42455389. The next prime is 42455423. The reversal of 42455400 is 455424.

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

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 5079 + ... + 10521.

It is an arithmetic number, because the mean of its divisors is an integer number (1476685).

Almost surely, 2^42455400 is an apocalyptic number.

42455400 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 42455400, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (70880880).

42455400 is an abundant number, since it is smaller than the sum of its proper divisors (99306360).

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

42455400 is a wasteful number, since it uses less digits than its factorization.

42455400 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5475 (or 5466 counting only the distinct ones).

The product of its (nonzero) digits is 3200, while the sum is 24.

The square root of 42455400 is about 6515.7808434600. The cubic root of 42455400 is about 348.8544862347.

Adding to 42455400 its sum of digits (24), we get a palindrome (42455424).

The spelling of 42455400 in words is "forty-two million, four hundred fifty-five thousand, four hundred".