402110040440 has 32 divisors (see below), whose sum is σ = 907134822000. Its totient is φ = 160419619584.

The previous prime is 402110040439. The next prime is 402110040467. The reversal of 402110040440 is 44040011204.

It is a happy number.

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 13247045 + ... + 13277364.

Almost surely, 2^402110040440 is an apocalyptic number.

402110040440 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

402110040440 is an abundant number, since it is smaller than the sum of its proper divisors (505024781560).

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

402110040440 is a wasteful number, since it uses less digits than its factorization.

402110040440 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26524799 (or 26524795 counting only the distinct ones).

The product of its (nonzero) digits is 512, while the sum is 20.

Adding to 402110040440 its reverse (44040011204), we get a palindrome (446150051644).

The spelling of 402110040440 in words is "four hundred two billion, one hundred ten million, forty thousand, four hundred forty".