10020412240 has 40 divisors (see below), whose sum is σ = 23302758528. Its totient is φ = 4007253120.

The previous prime is 10020412169. The next prime is 10020412247. The reversal of 10020412240 is 4221402001.

It is a tau number, because it is divible by the number of its divisors (40).

It is a super-2 number, since 2×10020412240² (a number of 21 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (16).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10020412247) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 422949 + ... + 446011.

Almost surely, 2^10020412240 is an apocalyptic number.

10020412240 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

10020412240 is an abundant number, since it is smaller than the sum of its proper divisors (13282346288).

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

10020412240 is a wasteful number, since it uses less digits than its factorization.

10020412240 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28507 (or 28501 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 16.

Adding to 10020412240 its reverse (4221402001), we get a palindrome (14241814241).

The spelling of 10020412240 in words is "ten billion, twenty million, four hundred twelve thousand, two hundred forty".