422387730 has 32 divisors (see below), whose sum is σ = 1126368000. Its totient is φ = 112636656.

The previous prime is 422387717. The next prime is 422387737. The reversal of 422387730 is 37783224.

It is a super-2 number, since 2×422387730² = 356822788909105800, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (422387737) 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, 781930 + ... + 782469.

It is an arithmetic number, because the mean of its divisors is an integer number (35199000).

Almost surely, 2^422387730 is an apocalyptic number.

422387730 is an abundant number, since it is smaller than the sum of its proper divisors (703980270).

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

422387730 is a wasteful number, since it uses less digits than its factorization.

422387730 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1564415 (or 1564409 counting only the distinct ones).

The product of its (nonzero) digits is 56448, while the sum is 36.

The square root of 422387730 is about 20552.0736180075. The cubic root of 422387730 is about 750.3037169914.

The spelling of 422387730 in words is "four hundred twenty-two million, three hundred eighty-seven thousand, seven hundred thirty".