3402102440 has 64 divisors (see below), whose sum is σ = 8620024320. Its totient is φ = 1197216000.

The previous prime is 3402102421. The next prime is 3402102467. The reversal of 3402102440 is 442012043.

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

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 111071 + ... + 138350.

It is an arithmetic number, because the mean of its divisors is an integer number (134687880).

Almost surely, 2^3402102440 is an apocalyptic number.

It is an amenable number.

3402102440 is an abundant number, since it is smaller than the sum of its proper divisors (5217921880).

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

3402102440 is a wasteful number, since it uses less digits than its factorization.

3402102440 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 249474 (or 249470 counting only the distinct ones).

The product of its (nonzero) digits is 768, while the sum is 20.

The square root of 3402102440 is about 58327.5444365696. The cubic root of 3402102440 is about 1504.0044762297.

Adding to 3402102440 its reverse (442012043), we get a palindrome (3844114483).

The spelling of 3402102440 in words is "three billion, four hundred two million, one hundred two thousand, four hundred forty".