704240040 has 128 divisors (see below), whose sum is σ = 2420386560. Its totient is φ = 160579584.

The previous prime is 704240027. The next prime is 704240041. The reversal of 704240040 is 40042407.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is a junction number, because it is equal to n+sod(n) for n = 704239989 and 704240016.

It is not an unprimeable number, because it can be changed into a prime (704240041) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 483954 + ... + 485406.

It is an arithmetic number, because the mean of its divisors is an integer number (18909270).

Almost surely, 2^704240040 is an apocalyptic number.

704240040 is a gapful number since it is divisible by the number (70) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 704240040, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1210193280).

704240040 is an abundant number, since it is smaller than the sum of its proper divisors (1716146520).

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

704240040 is a wasteful number, since it uses less digits than its factorization.

704240040 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2051 (or 2047 counting only the distinct ones).

The product of its (nonzero) digits is 896, while the sum is 21.

The square root of 704240040 is about 26537.5213612726. The cubic root of 704240040 is about 889.6931315910.

Adding to 704240040 its reverse (40042407), we get a palindrome (744282447).

The spelling of 704240040 in words is "seven hundred four million, two hundred forty thousand, forty".