40653040 has 40 divisors (see below), whose sum is σ = 94793040. Its totient is φ = 16214016.

The previous prime is 40653007. The next prime is 40653049. The reversal of 40653040 is 4035604.

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

It is a super-2 number, since 2×40653040² = 3305339322483200, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40653049) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 43296 + ... + 44224.

It is an arithmetic number, because the mean of its divisors is an integer number (2369826).

Almost surely, 2^40653040 is an apocalyptic number.

40653040 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

40653040 is an abundant number, since it is smaller than the sum of its proper divisors (54140000).

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

40653040 is a wasteful number, since it uses less digits than its factorization.

40653040 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1489 (or 1483 counting only the distinct ones).

The product of its (nonzero) digits is 1440, while the sum is 22.

The square root of 40653040 is about 6375.9736511375. The cubic root of 40653040 is about 343.8462897194.

Adding to 40653040 its reverse (4035604), we get a palindrome (44688644).

The spelling of 40653040 in words is "forty million, six hundred fifty-three thousand, forty".