42401420 has 24 divisors (see below), whose sum is σ = 92915424. Its totient is φ = 16222976.

The previous prime is 42401399. The next prime is 42401423. The reversal of 42401420 is 2410424.

It is not an unprimeable number, because it can be changed into a prime (42401423) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 45629 + ... + 46548.

It is an arithmetic number, because the mean of its divisors is an integer number (3871476).

Almost surely, 2^42401420 is an apocalyptic number.

It is an amenable number.

42401420 is an abundant number, since it is smaller than the sum of its proper divisors (50514004).

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

42401420 is a wasteful number, since it uses less digits than its factorization.

42401420 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 92209 (or 92207 counting only the distinct ones).

The product of its (nonzero) digits is 256, while the sum is 17.

The square root of 42401420 is about 6511.6372749102. The cubic root of 42401420 is about 348.7065729596.

Adding to 42401420 its reverse (2410424), we get a palindrome (44811844).

The spelling of 42401420 in words is "forty-two million, four hundred one thousand, four hundred twenty".