3400400403020 has 48 divisors (see below), whose sum is σ = 7350661156608. Its totient is φ = 1320573213120.

The previous prime is 3400400402969. The next prime is 3400400403041. The reversal of 3400400403020 is 203040040043.

It is a happy number.

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

It is a junction number, because it is equal to n+sod(n) for n = 3400400402983 and 3400400403001.

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, 11694566 + ... + 11981805.

It is an arithmetic number, because the mean of its divisors is an integer number (153138774096).

Almost surely, 2^{3400400403020} is an apocalyptic number.

It is an amenable number.

3400400403020 is an abundant number, since it is smaller than the sum of its proper divisors (3950260753588).

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

3400400403020 is a wasteful number, since it uses less digits than its factorization.

3400400403020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23676590 (or 23676588 counting only the distinct ones).

The product of its (nonzero) digits is 1152, while the sum is 20.

Adding to 3400400403020 its reverse (203040040043), we get a palindrome (3603440443063).

The spelling of 3400400403020 in words is "three trillion, four hundred billion, four hundred million, four hundred three thousand, twenty".