20200040010 has 40 divisors (see below), whose sum is σ = 54315665316. Its totient is φ = 5386677120.

The previous prime is 20200039973. The next prime is 20200040051. The reversal of 20200040010 is 1004000202.

It can be written as a sum of positive squares in 2 ways, for example, as 19302378489 + 897661521 = 138933^2 + 29961^2 .

It is a Harshad number since it is a multiple of its sum of digits (9).

It is a junction number, because it is equal to n+sod(n) for n = 20200039974 and 20200040001.

It is an unprimeable number.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 12468351 + ... + 12469970.

Almost surely, 2^20200040010 is an apocalyptic number.

20200040010 is an abundant number, since it is smaller than the sum of its proper divisors (34115625306).

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

20200040010 is a wasteful number, since it uses less digits than its factorization.

20200040010 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24938340 (or 24938331 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 9.

Adding to 20200040010 its reverse (1004000202), we get a palindrome (21204040212).

The spelling of 20200040010 in words is "twenty billion, two hundred million, forty thousand, ten".