40053040 has 40 divisors (see below), whose sum is σ = 93677040. Its totient is φ = 15926016.

The previous prime is 40053029. The next prime is 40053067. The reversal of 40053040 is 4035004.

It is a tau number, because it is divible by the number of its divisors (40).

It is a Harshad number since it is a multiple of its sum of digits (16).

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, 12922 + ... + 15718.

It is an arithmetic number, because the mean of its divisors is an integer number (2341926).

Almost surely, 2^40053040 is an apocalyptic number.

40053040 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 40053040, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (46838520).

40053040 is an abundant number, since it is smaller than the sum of its proper divisors (53624000).

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

40053040 is a wasteful number, since it uses less digits than its factorization.

40053040 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2989 (or 2983 counting only the distinct ones).

The product of its (nonzero) digits is 240, while the sum is 16.

The square root of 40053040 is about 6328.7471113957. The cubic root of 40053040 is about 342.1462844447.

Adding to 40053040 its reverse (4035004), we get a palindrome (44088044).

The spelling of 40053040 in words is "forty million, fifty-three thousand, forty".