420319542 has 16 divisors (see below), whose sum is σ = 853186752. Its totient is φ = 138015240.

The previous prime is 420319541. The next prime is 420319561. The reversal of 420319542 is 245913024.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (420319541) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 522384 + ... + 523187.

It is an arithmetic number, because the mean of its divisors is an integer number (53324172).

Almost surely, 2^420319542 is an apocalyptic number.

420319542 is an abundant number, since it is smaller than the sum of its proper divisors (432867210).

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

420319542 is a wasteful number, since it uses less digits than its factorization.

420319542 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1045643.

The product of its (nonzero) digits is 8640, while the sum is 30.

The square root of 420319542 is about 20501.6960761787. The cubic root of 420319542 is about 749.0771119471.

The spelling of 420319542 in words is "four hundred twenty million, three hundred nineteen thousand, five hundred forty-two".