1377340845 has 16 divisors (see below), whose sum is σ = 2204433792. Its totient is φ = 734352320.

The previous prime is 1377340831. The next prime is 1377340883. The reversal of 1377340845 is 5480437731.

It is not a de Polignac number, because 1377340845 - 2⁵ = 1377340813 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1377340797 and 1377340806.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 42559 + ... + 67571.

It is an arithmetic number, because the mean of its divisors is an integer number (137777112).

Almost surely, 2^1377340845 is an apocalyptic number.

1377340845 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

1377340845 is a deficient number, since it is larger than the sum of its proper divisors (827092947).

1377340845 is a wasteful number, since it uses less digits than its factorization.

1377340845 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28692.

The product of its (nonzero) digits is 282240, while the sum is 42.

The square root of 1377340845 is about 37112.5429605679. The cubic root of 1377340845 is about 1112.6207169431.

The spelling of 1377340845 in words is "one billion, three hundred seventy-seven million, three hundred forty thousand, eight hundred forty-five".