40454400 has 324 divisors, whose sum is σ = 158916912. Its totient is φ = 9031680.

The previous prime is 40454387. The next prime is 40454417. The reversal of 40454400 is 445404.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is an unprimeable number.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 940779 + ... + 940821.

Almost surely, 2^40454400 is an apocalyptic number.

40454400 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 40454400, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (79458456).

40454400 is an abundant number, since it is smaller than the sum of its proper divisors (118462512).

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

40454400 is a wasteful number, since it uses less digits than its factorization.

40454400 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 86 (or 60 counting only the distinct ones).

The product of its (nonzero) digits is 1280, while the sum is 21.

The square root of 40454400 is about 6360.3773472963. The cubic root of 40454400 is about 343.2853380192.

Adding to 40454400 its reverse (445404), we get a palindrome (40899804).

The spelling of 40454400 in words is "forty million, four hundred fifty-four thousand, four hundred".