2345421405 has 72 divisors (see below), whose sum is σ = 4126463136. Its totient is φ = 1137308160.

The previous prime is 2345421383. The next prime is 2345421437. The reversal of 2345421405 is 5041245432.

2345421405 is digitally balanced in base 2 and base 4, because in such bases it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 2345421405 - 2⁵ = 2345421373 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 71 ways as a sum of consecutive naturals, for example, 4165654 + ... + 4166216.

It is an arithmetic number, because the mean of its divisors is an integer number (57311988).

Almost surely, 2^2345421405 is an apocalyptic number.

It is an amenable number.

2345421405 is a deficient number, since it is larger than the sum of its proper divisors (1781041731).

2345421405 is a wasteful number, since it uses less digits than its factorization.

2345421405 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 667 (or 619 counting only the distinct ones).

The product of its (nonzero) digits is 19200, while the sum is 30.

The square root of 2345421405 is about 48429.5509477426. The cubic root of 2345421405 is about 1328.6388933995.

Adding to 2345421405 its reverse (5041245432), we get a palindrome (7386666837).

The spelling of 2345421405 in words is "two billion, three hundred forty-five million, four hundred twenty-one thousand, four hundred five".