1677646540 has 12 divisors (see below), whose sum is σ = 3523057776. Its totient is φ = 671058608.

The previous prime is 1677646501. The next prime is 1677646589. The reversal of 1677646540 is 456467761.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 41941144 + ... + 41941183.

It is an arithmetic number, because the mean of its divisors is an integer number (293588148).

Almost surely, 2^1677646540 is an apocalyptic number.

1677646540 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1677646540 is an abundant number, since it is smaller than the sum of its proper divisors (1845411236).

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

1677646540 is a wasteful number, since it uses less digits than its factorization.

1677646540 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 83882336 (or 83882334 counting only the distinct ones).

The product of its (nonzero) digits is 846720, while the sum is 46.

The square root of 1677646540 is about 40959.0837299860. The cubic root of 1677646540 is about 1188.2290207194.

The spelling of 1677646540 in words is "one billion, six hundred seventy-seven million, six hundred forty-six thousand, five hundred forty".