677138040 has 48 divisors (see below), whose sum is σ = 2200699800. Its totient is φ = 180570048.

The previous prime is 677138027. The next prime is 677138047. The reversal of 677138040 is 40831776.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a junction number, because it is equal to n+sod(n) for n = 677137986 and 677138004.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (677138047) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 940110 + ... + 940829.

Almost surely, 2^677138040 is an apocalyptic number.

677138040 is a gapful number since it is divisible by the number (60) formed by its first and last digit.

It is an amenable number.

677138040 is an abundant number, since it is smaller than the sum of its proper divisors (1523561760).

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

677138040 is a wasteful number, since it uses less digits than its factorization.

677138040 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1880956 (or 1880949 counting only the distinct ones).

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

The square root of 677138040 is about 26021.8761813978. The cubic root of 677138040 is about 878.1305181790.

The spelling of 677138040 in words is "six hundred seventy-seven million, one hundred thirty-eight thousand, forty".