420242658 has 32 divisors (see below), whose sum is σ = 918058752. Its totient is φ = 127184400.

The previous prime is 420242657. The next prime is 420242687. The reversal of 420242658 is 856242024.

It is a Harshad number since it is a multiple of its sum of digits (33).

It is not an unprimeable number, because it can be changed into a prime (420242653) 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, 54673 + ... + 61883.

It is an arithmetic number, because the mean of its divisors is an integer number (28689336).

Almost surely, 2^420242658 is an apocalyptic number.

420242658 is an abundant number, since it is smaller than the sum of its proper divisors (497816094).

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

420242658 is a wasteful number, since it uses less digits than its factorization.

420242658 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8110.

The product of its (nonzero) digits is 30720, while the sum is 33.

The square root of 420242658 is about 20499.8209260471. The cubic root of 420242658 is about 749.0314359389.

The spelling of 420242658 in words is "four hundred twenty million, two hundred forty-two thousand, six hundred fifty-eight".