3402121140 has 144 divisors (see below), whose sum is σ = 11562445440. Its totient is φ = 802448640.

The previous prime is 3402121139. The next prime is 3402121157. The reversal of 3402121140 is 411212043.

3402121140 is a `hidden beast` number, since 3 + 402 + 121 + 140 = 666.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 50041 + ... + 96479.

It is an arithmetic number, because the mean of its divisors is an integer number (80294760).

Almost surely, 2^3402121140 is an apocalyptic number.

3402121140 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 3402121140, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (5781222720).

3402121140 is an abundant number, since it is smaller than the sum of its proper divisors (8160324300).

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

3402121140 is a wasteful number, since it uses less digits than its factorization.

3402121140 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 46502 (or 46497 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 18.

The square root of 3402121140 is about 58327.7047379716. The cubic root of 3402121140 is about 1504.0072318622.

Adding to 3402121140 its reverse (411212043), we get a palindrome (3813333183).

The spelling of 3402121140 in words is "three billion, four hundred two million, one hundred twenty-one thousand, one hundred forty".