42061401 has 6 divisors (see below), whose sum is σ = 60755370. Its totient is φ = 28040928.

The previous prime is 42061387. The next prime is 42061423. The reversal of 42061401 is 10416024.

It can be written as a sum of positive squares in only one way, i.e., 39388176 + 2673225 = 6276^2 + 1635^2 .

It is not a de Polignac number, because 42061401 - 2⁶ = 42061337 is a prime.

It is a super-2 number, since 2×42061401² = 3538322908165602, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (42061471) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 2336736 + ... + 2336753.

It is an arithmetic number, because the mean of its divisors is an integer number (10125895).

Almost surely, 2^42061401 is an apocalyptic number.

It is an amenable number.

42061401 is a deficient number, since it is larger than the sum of its proper divisors (18693969).

42061401 is a wasteful number, since it uses less digits than its factorization.

42061401 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4673495 (or 4673492 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 18.

The square root of 42061401 is about 6485.4761583094. The cubic root of 42061401 is about 347.7719720991.

Adding to 42061401 its reverse (10416024), we get a palindrome (52477425).

The spelling of 42061401 in words is "forty-two million, sixty-one thousand, four hundred one".