740408 has 8 divisors (see below), whose sum is σ = 1388280. Its totient is φ = 370200.

The previous prime is 740387. The next prime is 740423. The reversal of 740408 is 804047.

It is a tau number, because it is divible by the number of its divisors (8).

It is a congruent number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 740408.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 46268 + ... + 46283.

It is an arithmetic number, because the mean of its divisors is an integer number (173535).

2⁷⁴⁰⁴⁰⁸ is an apocalyptic number.

It is an amenable number.

740408 is a deficient number, since it is larger than the sum of its proper divisors (647872).

740408 is a wasteful number, since it uses less digits than its factorization.

740408 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 92557 (or 92553 counting only the distinct ones).

The product of its (nonzero) digits is 896, while the sum is 23.

The square root of 740408 is about 860.4696392087. The cubic root of 740408 is about 90.4670372308.

The spelling of 740408 in words is "seven hundred forty thousand, four hundred eight".