744040 has 64 divisors (see below), whose sum is σ = 1944000. Its totient is φ = 253440.

The previous prime is 744019. The next prime is 744043. The reversal of 744040 is 40447.

744040 = T₂₄₉ + T₂₅₀ + ... + T₂₇₀.

It is a happy number.

744040 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (19).

It is a junction number, because it is equal to n+sod(n) for n = 743999 and 744017.

It is not an unprimeable number, because it can be changed into a prime (744043) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 8316 + ... + 8404.

It is an arithmetic number, because the mean of its divisors is an integer number (30375).

2⁷⁴⁴⁰⁴⁰ 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 744040, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (972000).

744040 is an abundant number, since it is smaller than the sum of its proper divisors (1199960).

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

744040 is a wasteful number, since it uses less digits than its factorization.

744040 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 130 (or 126 counting only the distinct ones).

The product of its (nonzero) digits is 448, while the sum is 19.

The square root of 744040 is about 862.5775327471. The cubic root of 744040 is about 90.6147217832.

Adding to 744040 its reverse (40447), we get a palindrome (784487).

It can be divided in two parts, 74 and 4040, that added together give a palindrome (4114).

The spelling of 744040 in words is "seven hundred forty-four thousand, forty", and thus it is an iban number.