40950020 has 12 divisors (see below), whose sum is σ = 85995084. Its totient is φ = 16380000.

The previous prime is 40949999. The next prime is 40950023. The reversal of 40950020 is 2005904.

It can be written as a sum of positive squares in 2 ways, for example, as 31561924 + 9388096 = 5618^2 + 3064^2 .

It is a Harshad number since it is a multiple of its sum of digits (20), and also a Moran number because the ratio is a prime number: 2047501 = 40950020 / (4 + 0 + 9 + 5 + 0 + 0 + 2 + 0).

It is a junction number, because it is equal to n+sod(n) for n = 40949974 and 40950001.

It is not an unprimeable number, because it can be changed into a prime (40950023) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1023731 + ... + 1023770.

It is an arithmetic number, because the mean of its divisors is an integer number (7166257).

Almost surely, 2^40950020 is an apocalyptic number.

It is an amenable number.

40950020 is an abundant number, since it is smaller than the sum of its proper divisors (45045064).

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

40950020 is a wasteful number, since it uses less digits than its factorization.

40950020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2047510 (or 2047508 counting only the distinct ones).

The product of its (nonzero) digits is 360, while the sum is 20.

The square root of 40950020 is about 6399.2202650010. The cubic root of 40950020 is about 344.6815517010.

Adding to 40950020 its reverse (2005904), we get a palindrome (42955924).

The spelling of 40950020 in words is "forty million, nine hundred fifty thousand, twenty".