420365442 has 32 divisors (see below), whose sum is σ = 977126400. Its totient is φ = 118068048.

The previous prime is 420365417. The next prime is 420365447. The reversal of 420365442 is 244563024.

It is not an unprimeable number, because it can be changed into a prime (420365447) 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, 82342 + ... + 87297.

It is an arithmetic number, because the mean of its divisors is an integer number (30535200).

Almost surely, 2^420365442 is an apocalyptic number.

420365442 is a gapful number since it is divisible by the number (42) formed by its first and last digit.

420365442 is an abundant number, since it is smaller than the sum of its proper divisors (556760958).

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

420365442 is a wasteful number, since it uses less digits than its factorization.

420365442 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 169710.

The product of its (nonzero) digits is 23040, while the sum is 30.

The square root of 420365442 is about 20502.8154651989. The cubic root of 420365442 is about 749.1043780185.

The spelling of 420365442 in words is "four hundred twenty million, three hundred sixty-five thousand, four hundred forty-two".