40461440 has 64 divisors (see below), whose sum is σ = 97528320. Its totient is φ = 16051200.

The previous prime is 40461427. The next prime is 40461457. The reversal of 40461440 is 4416404.

It is a tau number, because it is divible by the number of its divisors (64).

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 122075 + ... + 122405.

It is an arithmetic number, because the mean of its divisors is an integer number (1523880).

Almost surely, 2^40461440 is an apocalyptic number.

40461440 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 40461440, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (48764160).

40461440 is an abundant number, since it is smaller than the sum of its proper divisors (57066880).

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

40461440 is a wasteful number, since it uses less digits than its factorization.

40461440 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 541 (or 529 counting only the distinct ones).

The product of its (nonzero) digits is 1536, while the sum is 23.

The square root of 40461440 is about 6360.9307495051. The cubic root of 40461440 is about 343.3052500568.

Adding to 40461440 its reverse (4416404), we get a palindrome (44877844).

The spelling of 40461440 in words is "forty million, four hundred sixty-one thousand, four hundred forty".