740639120 has 120 divisors (see below), whose sum is σ = 1929954600. Its totient is φ = 263897088.

The previous prime is 740639099. The next prime is 740639167. The reversal of 740639120 is 21936047.

It can be written as a sum of positive squares in 12 ways, for example, as 418939024 + 321700096 = 20468^2 + 17936^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 391136 + ... + 393024.

It is an arithmetic number, because the mean of its divisors is an integer number (16082955).

Almost surely, 2^740639120 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 740639120, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (964977300).

740639120 is an abundant number, since it is smaller than the sum of its proper divisors (1189315480).

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

740639120 is a wasteful number, since it uses less digits than its factorization.

740639120 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1957 (or 1938 counting only the distinct ones).

The product of its (nonzero) digits is 9072, while the sum is 32.

The square root of 740639120 is about 27214.6857413419. The cubic root of 740639120 is about 904.7644941367.

The spelling of 740639120 in words is "seven hundred forty million, six hundred thirty-nine thousand, one hundred twenty".