761440 has 24 divisors (see below), whose sum is σ = 1799280. Its totient is φ = 304512.

The previous prime is 761437. The next prime is 761441. The reversal of 761440 is 44167.

761440 = 76² + 77² + ... + 139².

761440 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (761441) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2220 + ... + 2539.

It is an arithmetic number, because the mean of its divisors is an integer number (74970).

2⁷⁶¹⁴⁴⁰ is an apocalyptic number.

It is an amenable number.

761440 is an abundant number, since it is smaller than the sum of its proper divisors (1037840).

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

761440 is a wasteful number, since it uses less digits than its factorization.

761440 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4774 (or 4766 counting only the distinct ones).

The product of its (nonzero) digits is 672, while the sum is 22.

The square root of 761440 is about 872.6052945061. The cubic root of 761440 is about 91.3156530088.

The spelling of 761440 in words is "seven hundred sixty-one thousand, four hundred forty".