840601377 has 24 divisors (see below), whose sum is σ = 1513811520. Its totient is φ = 436675680.

The previous prime is 840601373. The next prime is 840601387. The reversal of 840601377 is 773106048.

840601377 is a `hidden beast` number, since 8 + 40 + 601 + 3 + 7 + 7 = 666.

It is not a de Polignac number, because 840601377 - 2² = 840601373 is a prime.

It is a super-2 number, since 2×840601377² = 1413221350028592258, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (840601373) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 605802 + ... + 607187.

It is an arithmetic number, because the mean of its divisors is an integer number (63075480).

Almost surely, 2^840601377 is an apocalyptic number.

It is an amenable number.

840601377 is a deficient number, since it is larger than the sum of its proper divisors (673210143).

840601377 is a wasteful number, since it uses less digits than its factorization.

840601377 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1213013 (or 1213010 counting only the distinct ones).

The product of its (nonzero) digits is 28224, while the sum is 36.

The square root of 840601377 is about 28993.1263750566. The cubic root of 840601377 is about 943.7639100211.

The spelling of 840601377 in words is "eight hundred forty million, six hundred one thousand, three hundred seventy-seven".