420750637242 has 32 divisors (see below), whose sum is σ = 907035017280. Its totient is φ = 129347038080.

The previous prime is 420750637217. The next prime is 420750637243. The reversal of 420750637242 is 242736057024.

It is a junction number, because it is equal to n+sod(n) for n = 420750637194 and 420750637203.

It is not an unprimeable number, because it can be changed into a prime (420750637243) 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, 2300884 + ... + 2477007.

It is an arithmetic number, because the mean of its divisors is an integer number (28344844290).

Almost surely, 2^420750637242 is an apocalyptic number.

420750637242 is an abundant number, since it is smaller than the sum of its proper divisors (486284380038).

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

420750637242 is a wasteful number, since it uses less digits than its factorization.

420750637242 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4779038.

The product of its (nonzero) digits is 564480, while the sum is 42.

The spelling of 420750637242 in words is "four hundred twenty billion, seven hundred fifty million, six hundred thirty-seven thousand, two hundred forty-two".