40012480 has 56 divisors (see below), whose sum is σ = 100309680. Its totient is φ = 15160320.

The previous prime is 40012477. The next prime is 40012481. The reversal of 40012480 is 8421004.

It is a Harshad number since it is a multiple of its sum of digits (19).

It is not an unprimeable number, because it can be changed into a prime (40012481) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2790 + ... + 9370.

Almost surely, 2^40012480 is an apocalyptic number.

40012480 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 40012480, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (50154840).

40012480 is an abundant number, since it is smaller than the sum of its proper divisors (60297200).

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

40012480 is a wasteful number, since it uses less digits than its factorization.

40012480 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6617 (or 6607 counting only the distinct ones).

The product of its (nonzero) digits is 256, while the sum is 19.

The square root of 40012480 is about 6325.5418740215. The cubic root of 40012480 is about 342.0307531367.

Adding to 40012480 its reverse (8421004), we get a palindrome (48433484).

It can be divided in two parts, 400 and 12480, that added together give a triangular number (12880 = T₁₆₀).

The spelling of 40012480 in words is "forty million, twelve thousand, four hundred eighty".