3454547640 has 64 divisors (see below), whose sum is σ = 10376100000. Its totient is φ = 920105472.

The previous prime is 3454547639. The next prime is 3454547653. The reversal of 3454547640 is 467454543.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 3454547592 and 3454547601.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 85486 + ... + 119234.

Almost surely, 2^3454547640 is an apocalyptic number.

3454547640 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is an amenable number.

3454547640 is an abundant number, since it is smaller than the sum of its proper divisors (6921552360).

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

3454547640 is a wasteful number, since it uses less digits than its factorization.

3454547640 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 34616 (or 34612 counting only the distinct ones).

The product of its (nonzero) digits is 806400, while the sum is 42.

The square root of 3454547640 is about 58775.3999561041. The cubic root of 3454547640 is about 1511.6934409706.

The spelling of 3454547640 in words is "three billion, four hundred fifty-four million, five hundred forty-seven thousand, six hundred forty".