420666741 has 12 divisors (see below), whose sum is σ = 662868960. Its totient is φ = 254949480.

The previous prime is 420666739. The next prime is 420666767. The reversal of 420666741 is 147666024.

It is not a de Polignac number, because 420666741 - 2¹ = 420666739 is a prime.

It is a super-2 number, since 2×420666741² = 353921013967122162, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 420666696 and 420666705.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (420666041) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 2124481 + ... + 2124678.

It is an arithmetic number, because the mean of its divisors is an integer number (55239080).

Almost surely, 2^420666741 is an apocalyptic number.

It is an amenable number.

420666741 is a deficient number, since it is larger than the sum of its proper divisors (242202219).

420666741 is a wasteful number, since it uses less digits than its factorization.

420666741 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4249176 (or 4249173 counting only the distinct ones).

The product of its (nonzero) digits is 48384, while the sum is 36.

The square root of 420666741 is about 20510.1618959968. The cubic root of 420666741 is about 749.2833100255.

The spelling of 420666741 in words is "four hundred twenty million, six hundred sixty-six thousand, seven hundred forty-one".