6553740 has 24 divisors (see below), whose sum is σ = 18350640. Its totient is φ = 1747648.

The previous prime is 6553733. The next prime is 6553769. The reversal of 6553740 is 473556.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a junction number, because it is equal to n+sod(n) for n = 6553698 and 6553707.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 54555 + ... + 54674.

It is an arithmetic number, because the mean of its divisors is an integer number (764610).

Almost surely, 2^6553740 is an apocalyptic number.

6553740 is a gapful number since it is divisible by the number (60) formed by its first and last digit.

It is an amenable number.

6553740 is an abundant number, since it is smaller than the sum of its proper divisors (11796900).

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

6553740 is a wasteful number, since it uses less digits than its factorization.

6553740 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 109241 (or 109239 counting only the distinct ones).

The product of its (nonzero) digits is 12600, while the sum is 30.

The square root of 6553740 is about 2560.0273436040. The cubic root of 6553740 is about 187.1384677963.

The spelling of 6553740 in words is "six million, five hundred fifty-three thousand, seven hundred forty".