3546401280 has 320 divisors, whose sum is σ = 12536840448. Its totient is φ = 850657280.

The previous prime is 3546401273. The next prime is 3546401291. The reversal of 3546401280 is 821046453.

It is a tau number, because it is divible by the number of its divisors (320).

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 3002290 + ... + 3003470.

Almost surely, 2^3546401280 is an apocalyptic number.

3546401280 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 3546401280, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (6268420224).

3546401280 is an abundant number, since it is smaller than the sum of its proper divisors (8990439168).

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

3546401280 is a wasteful number, since it uses less digits than its factorization.

3546401280 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1247 (or 1231 counting only the distinct ones).

The product of its (nonzero) digits is 23040, while the sum is 33.

The square root of 3546401280 is about 59551.6689942440. The cubic root of 3546401280 is about 1524.9746522706.

The spelling of 3546401280 in words is "three billion, five hundred forty-six million, four hundred one thousand, two hundred eighty".