740586840 has 128 divisors (see below), whose sum is σ = 2553707520. Its totient is φ = 168307200.

The previous prime is 740586823. The next prime is 740586841. The reversal of 740586840 is 48685047.

It is a Harshad number since it is a multiple of its sum of digits (42).

It is a junction number, because it is equal to n+sod(n) for n = 740586792 and 740586801.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (740586841) 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 31 ways as a sum of consecutive naturals, for example, 149605 + ... + 154475.

It is an arithmetic number, because the mean of its divisors is an integer number (19950840).

Almost surely, 2^740586840 is an apocalyptic number.

740586840 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 740586840, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1276853760).

740586840 is an abundant number, since it is smaller than the sum of its proper divisors (1813120680).

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

740586840 is a wasteful number, since it uses less digits than its factorization.

740586840 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5073 (or 5069 counting only the distinct ones).

The product of its (nonzero) digits is 215040, while the sum is 42.

The square root of 740586840 is about 27213.7252135756. The cubic root of 740586840 is about 904.7432052258.

The spelling of 740586840 in words is "seven hundred forty million, five hundred eighty-six thousand, eight hundred forty".