677401040 has 40 divisors (see below), whose sum is σ = 1667605320. Its totient is φ = 255021056.

The previous prime is 677401033. The next prime is 677401073. The reversal of 677401040 is 40104776.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 107910544 + 569490496 = 10388^2 + 23864^2 .

It is a tau number, because it is divible by the number of its divisors (40).

It is a junction number, because it is equal to n+sod(n) for n = 677400994 and 677401012.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 247685 + ... + 250404.

It is an arithmetic number, because the mean of its divisors is an integer number (41690133).

Almost surely, 2^677401040 is an apocalyptic number.

It is an amenable number.

677401040 is an abundant number, since it is smaller than the sum of its proper divisors (990204280).

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

677401040 is a wasteful number, since it uses less digits than its factorization.

677401040 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 498119 (or 498113 counting only the distinct ones).

The product of its (nonzero) digits is 4704, while the sum is 29.

The square root of 677401040 is about 26026.9291311903. The cubic root of 677401040 is about 878.2441919151.

The spelling of 677401040 in words is "six hundred seventy-seven million, four hundred one thousand, forty".