3450021040 has 80 divisors (see below), whose sum is σ = 8123765760. Its totient is φ = 1362493440.

The previous prime is 3450021037. The next prime is 3450021049. The reversal of 3450021040 is 401200543.

It is a tau number, because it is divible by the number of its divisors (80).

It is a junction number, because it is equal to n+sod(n) for n = 3450020999 and 3450021017.

It is not an unprimeable number, because it can be changed into a prime (3450021049) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2447856 + ... + 2449264.

It is an arithmetic number, because the mean of its divisors is an integer number (101547072).

Almost surely, 2^3450021040 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 3450021040, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (4061882880).

3450021040 is an abundant number, since it is smaller than the sum of its proper divisors (4673744720).

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

3450021040 is a wasteful number, since it uses less digits than its factorization.

3450021040 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1790 (or 1784 counting only the distinct ones).

The product of its (nonzero) digits is 480, while the sum is 19.

The square root of 3450021040 is about 58736.8797264547. The cubic root of 3450021040 is about 1511.0328795684.

Adding to 3450021040 its reverse (401200543), we get a palindrome (3851221583).

The spelling of 3450021040 in words is "three billion, four hundred fifty million, twenty-one thousand, forty".