40707020 has 24 divisors (see below), whose sum is σ = 86370144. Its totient is φ = 16114176.

The previous prime is 40707019. The next prime is 40707053. The reversal of 40707020 is 2070704.

40707020 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×40707020² = 3314122954560800, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (20).

It is a junction number, because it is equal to n+sod(n) for n = 40706983 and 40707001.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 8552 + ... + 12431.

It is an arithmetic number, because the mean of its divisors is an integer number (3598756).

Almost surely, 2^40707020 is an apocalyptic number.

It is an amenable number.

40707020 is an abundant number, since it is smaller than the sum of its proper divisors (45663124).

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

40707020 is a wasteful number, since it uses less digits than its factorization.

40707020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21089 (or 21087 counting only the distinct ones).

The product of its (nonzero) digits is 392, while the sum is 20.

The square root of 40707020 is about 6380.2053258496. The cubic root of 40707020 is about 343.9984112961.

Adding to 40707020 its reverse (2070704), we get a palindrome (42777724).

The spelling of 40707020 in words is "forty million, seven hundred seven thousand, twenty".