6734040728 has 8 divisors (see below), whose sum is σ = 12626326380. Its totient is φ = 3367020360.

The previous prime is 6734040727. The next prime is 6734040749. The reversal of 6734040728 is 8270404376.

It is a tau number, because it is divible by the number of its divisors (8).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6734040727) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 420877538 + ... + 420877553.

Almost surely, 2^6734040728 is an apocalyptic number.

It is an amenable number.

6734040728 is a deficient number, since it is larger than the sum of its proper divisors (5892285652).

6734040728 is a wasteful number, since it uses less digits than its factorization.

6734040728 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 841755097 (or 841755093 counting only the distinct ones).

The product of its (nonzero) digits is 225792, while the sum is 41.

The square root of 6734040728 is about 82061.2011123405. The cubic root of 6734040728 is about 1888.3909607322.

The spelling of 6734040728 in words is "six billion, seven hundred thirty-four million, forty thousand, seven hundred twenty-eight".