4354634640 has 160 divisors (see below), whose sum is σ = 13727978496. Its totient is φ = 1141747200.

The previous prime is 4354634629. The next prime is 4354634729. The reversal of 4354634640 is 464364534.

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, 3877119 + ... + 3878241.

Almost surely, 2^4354634640 is an apocalyptic number.

4354634640 is a gapful number since it is divisible by the number (40) 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 4354634640, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (6863989248).

4354634640 is an abundant number, since it is smaller than the sum of its proper divisors (9373343856).

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

4354634640 is a wasteful number, since it uses less digits than its factorization.

4354634640 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1397 (or 1391 counting only the distinct ones).

The product of its (nonzero) digits is 414720, while the sum is 39.

The square root of 4354634640 is about 65989.6555529728. The cubic root of 4354634640 is about 1632.9914379018.

The spelling of 4354634640 in words is "four billion, three hundred fifty-four million, six hundred thirty-four thousand, six hundred forty".