3402120730846 has 16 divisors (see below), whose sum is σ = 5372293093200. Its totient is φ = 1611373817088.

The previous prime is 3402120730819. The next prime is 3402120730847. The reversal of 3402120730846 is 6480370212043.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 3402120730799 and 3402120730808.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3402120730847) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3967141 + ... + 4747888.

It is an arithmetic number, because the mean of its divisors is an integer number (335768318325).

Almost surely, 2^{3402120730846} is an apocalyptic number.

3402120730846 is a deficient number, since it is larger than the sum of its proper divisors (1970172362354).

3402120730846 is a wasteful number, since it uses less digits than its factorization.

3402120730846 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8725323.

The product of its (nonzero) digits is 193536, while the sum is 40.

Adding to 3402120730846 its reverse (6480370212043), we get a palindrome (9882490942889).

The spelling of 3402120730846 in words is "three trillion, four hundred two billion, one hundred twenty million, seven hundred thirty thousand, eight hundred forty-six".