400420202402080 has 96 divisors (see below), whose sum is σ = 1081138177405440. Its totient is φ = 137286465469440.

The previous prime is 400420202402041. The next prime is 400420202402137. The reversal of 400420202402080 is 80204202024004.

It is a super-3 number, since 3×400420202402080³ (a number of 45 digits) contains 333 as substring.

It is a Harshad number since it is a multiple of its sum of digits (28).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 611729370 + ... + 612383590.

It is an arithmetic number, because the mean of its divisors is an integer number (11261856014640).

Almost surely, 2^{400420202402080} is an apocalyptic number.

400420202402080 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

400420202402080 is an abundant number, since it is smaller than the sum of its proper divisors (680717975003360).

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

400420202402080 is a wasteful number, since it uses less digits than its factorization.

400420202402080 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1200722 (or 1200714 counting only the distinct ones).

The product of its (nonzero) digits is 8192, while the sum is 28.

Adding to 400420202402080 its reverse (80204202024004), we get a palindrome (480624404426084).

The spelling of 400420202402080 in words is "four hundred trillion, four hundred twenty billion, two hundred two million, four hundred two thousand, eighty".