402024031040 has 28 divisors (see below), whose sum is σ = 957319724676. Its totient is φ = 160809612288.

The previous prime is 402024031033. The next prime is 402024031043. The reversal of 402024031040 is 40130420204.

It can be written as a sum of positive squares in 2 ways, for example, as 319622883904 + 82401147136 = 565352^2 + 287056^2 .

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (402024031043) 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, 628162229 + ... + 628162868.

It is an arithmetic number, because the mean of its divisors is an integer number (34189990167).

Almost surely, 2^402024031040 is an apocalyptic number.

402024031040 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

402024031040 is an abundant number, since it is smaller than the sum of its proper divisors (555295693636).

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

402024031040 is a wasteful number, since it uses less digits than its factorization.

402024031040 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1256325114 (or 1256325104 counting only the distinct ones).

The product of its (nonzero) digits is 768, while the sum is 20.

Adding to 402024031040 its reverse (40130420204), we get a palindrome (442154451244).

The spelling of 402024031040 in words is "four hundred two billion, twenty-four million, thirty-one thousand, forty".