402026505920 has 56 divisors (see below), whose sum is σ = 1030966059984. Its totient is φ = 148440554496.

The previous prime is 402026505913. The next prime is 402026505929. The reversal of 402026505920 is 29505620204.

It is a super-2 number, since 2×402026505920² (a number of 24 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (402026505929) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 48316334 + ... + 48324653.

It is an arithmetic number, because the mean of its divisors is an integer number (18410108214).

Almost surely, 2^402026505920 is an apocalyptic number.

402026505920 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

402026505920 is an abundant number, since it is smaller than the sum of its proper divisors (628939554064).

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

402026505920 is a wasteful number, since it uses less digits than its factorization.

402026505920 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 96641017 (or 96641007 counting only the distinct ones).

The product of its (nonzero) digits is 43200, while the sum is 35.

The spelling of 402026505920 in words is "four hundred two billion, twenty-six million, five hundred five thousand, nine hundred twenty".