1010220040 has 16 divisors (see below), whose sum is σ = 2272995180. Its totient is φ = 404088000.

The previous prime is 1010220023. The next prime is 1010220041. The reversal of 1010220040 is 400220101.

It can be written as a sum of positive squares in 2 ways, for example, as 995150116 + 15069924 = 31546^2 + 3882^2 .

It is a Harshad number since it is a multiple of its sum of digits (10).

It is a junction number, because it is equal to n+sod(n) for n = 1010219999 and 1010220026.

It is not an unprimeable number, because it can be changed into a prime (1010220041) 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, 12627711 + ... + 12627790.

Almost surely, 2^1010220040 is an apocalyptic number.

1010220040 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1010220040 is an abundant number, since it is smaller than the sum of its proper divisors (1262775140).

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

1010220040 is a wasteful number, since it uses less digits than its factorization.

1010220040 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25255512 (or 25255508 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 10.

The square root of 1010220040 is about 31783.9588471921. The cubic root of 1010220040 is about 1003.3951399793.

Adding to 1010220040 its reverse (400220101), we get a palindrome (1410440141).

The spelling of 1010220040 in words is "one billion, ten million, two hundred twenty thousand, forty".