40652920 has 128 divisors (see below), whose sum is σ = 116328960. Its totient is φ = 12418560.

The previous prime is 40652917. The next prime is 40652921. The reversal of 40652920 is 2925604.

It is a Harshad number since it is a multiple of its sum of digits (28).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40652921) 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 31 ways as a sum of consecutive naturals, for example, 206262 + ... + 206458.

It is an arithmetic number, because the mean of its divisors is an integer number (908820).

Almost surely, 2^40652920 is an apocalyptic number.

40652920 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 40652920, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (58164480).

40652920 is an abundant number, since it is smaller than the sum of its proper divisors (75676040).

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

40652920 is a wasteful number, since it uses less digits than its factorization.

40652920 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 293 (or 289 counting only the distinct ones).

The product of its (nonzero) digits is 4320, while the sum is 28.

The square root of 40652920 is about 6375.9642408031. The cubic root of 40652920 is about 343.8459513963.

The spelling of 40652920 in words is "forty million, six hundred fifty-two thousand, nine hundred twenty".