740105421 has 16 divisors (see below), whose sum is σ = 1139842368. Its totient is φ = 422163200.

The previous prime is 740105419. The next prime is 740105437. The reversal of 740105421 is 124501047.

740105421 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a cyclic number.

It is not a de Polignac number, because 740105421 - 2¹ = 740105419 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 740105391 and 740105400.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (740105021) 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, 659070 + ... + 660191.

It is an arithmetic number, because the mean of its divisors is an integer number (71240148).

Almost surely, 2^740105421 is an apocalyptic number.

It is an amenable number.

740105421 is a deficient number, since it is larger than the sum of its proper divisors (399736947).

740105421 is a wasteful number, since it uses less digits than its factorization.

740105421 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1319292.

The product of its (nonzero) digits is 1120, while the sum is 24.

The square root of 740105421 is about 27204.8786249820. The cubic root of 740105421 is about 904.5471197440.

Adding to 740105421 its reverse (124501047), we get a palindrome (864606468).

The spelling of 740105421 in words is "seven hundred forty million, one hundred five thousand, four hundred twenty-one".