3455980398 has 64 divisors (see below), whose sum is σ = 8323667520. Its totient is φ = 1056571776.

The previous prime is 3455980397. The next prime is 3455980417. The reversal of 3455980398 is 8930895543.

3455980398 is a `hidden beast` number, since 3 + 4 + 559 + 80 + 3 + 9 + 8 = 666.

It is a super-2 number, since 2×3455980398² = 23887601022720476808, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3455980393) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 94536 + ... + 125892.

It is an arithmetic number, because the mean of its divisors is an integer number (130057305).

Almost surely, 2^3455980398 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 3455980398, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (4161833760).

3455980398 is an abundant number, since it is smaller than the sum of its proper divisors (4867687122).

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

3455980398 is a wasteful number, since it uses less digits than its factorization.

3455980398 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 31538 (or 31532 counting only the distinct ones).

The product of its (nonzero) digits is 4665600, while the sum is 54.

The square root of 3455980398 is about 58787.5871081643. The cubic root of 3455980398 is about 1511.9024014226.

The spelling of 3455980398 in words is "three billion, four hundred fifty-five million, nine hundred eighty thousand, three hundred ninety-eight".