1678754540 has 12 divisors (see below), whose sum is σ = 3525384576. Its totient is φ = 671501808.

The previous prime is 1678754537. The next prime is 1678754551. The reversal of 1678754540 is 454578761.

It is a super-2 number, since 2×1678754540² = 5636433611141223200, which contains 22 as substring.

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, 41968844 + ... + 41968883.

It is an arithmetic number, because the mean of its divisors is an integer number (293782048).

Almost surely, 2^1678754540 is an apocalyptic number.

1678754540 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1678754540 is an abundant number, since it is smaller than the sum of its proper divisors (1846630036).

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

1678754540 is a wasteful number, since it uses less digits than its factorization.

1678754540 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 83937736 (or 83937734 counting only the distinct ones).

The product of its (nonzero) digits is 940800, while the sum is 47.

The square root of 1678754540 is about 40972.6071906585. The cubic root of 1678754540 is about 1188.4905513795.

The spelling of 1678754540 in words is "one billion, six hundred seventy-eight million, seven hundred fifty-four thousand, five hundred forty".