740544240 has 40 divisors (see below), whose sum is σ = 2295687888. Its totient is φ = 197478400.

The previous prime is 740544229. The next prime is 740544251. The reversal of 740544240 is 42445047.

740544240 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (740544229) and next prime (740544251).

It is a tau number, because it is divible by the number of its divisors (40).

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a junction number, because it is equal to n+sod(n) for n = 740544198 and 740544207.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1542561 + ... + 1543040.

Almost surely, 2^740544240 is an apocalyptic number.

It is an amenable number.

740544240 is an abundant number, since it is smaller than the sum of its proper divisors (1555143648).

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

740544240 is a wasteful number, since it uses less digits than its factorization.

740544240 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3085617 (or 3085611 counting only the distinct ones).

The product of its (nonzero) digits is 17920, while the sum is 30.

The square root of 740544240 is about 27212.9425090342. The cubic root of 740544240 is about 904.7258573617.

Adding to 740544240 its reverse (42445047), we get a palindrome (782989287).

The spelling of 740544240 in words is "seven hundred forty million, five hundred forty-four thousand, two hundred forty".