4145442408 has 64 divisors (see below), whose sum is σ = 11826360000. Its totient is φ = 1344465216.

The previous prime is 4145442407. The next prime is 4145442443. The reversal of 4145442408 is 8042445414.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is not an unprimeable number, because it can be changed into a prime (4145442407) 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, 251358 + ... + 267341.

It is an arithmetic number, because the mean of its divisors is an integer number (184786875).

Almost surely, 2^4145442408 is an apocalyptic number.

It is an amenable number.

4145442408 is an abundant number, since it is smaller than the sum of its proper divisors (7680917592).

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

4145442408 is a wasteful number, since it uses less digits than its factorization.

4145442408 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 518751 (or 518741 counting only the distinct ones).

The product of its (nonzero) digits is 81920, while the sum is 36.

The square root of 4145442408 is about 64385.1101420196. The cubic root of 4145442408 is about 1606.4120824637.

The spelling of 4145442408 in words is "four billion, one hundred forty-five million, four hundred forty-two thousand, four hundred eight".