422061387 has 16 divisors (see below), whose sum is σ = 614910720. Its totient is φ = 255376800.

The previous prime is 422061361. The next prime is 422061439. The reversal of 422061387 is 783160224.

It is not a de Polignac number, because 422061387 - 2⁶ = 422061323 is a prime.

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 (422061287) 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, 10689 + ... + 30957.

It is an arithmetic number, because the mean of its divisors is an integer number (38431920).

Almost surely, 2^422061387 is an apocalyptic number.

422061387 is a deficient number, since it is larger than the sum of its proper divisors (192849333).

422061387 is a wasteful number, since it uses less digits than its factorization.

422061387 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20914.

The product of its (nonzero) digits is 16128, while the sum is 33.

The square root of 422061387 is about 20544.1326660436. The cubic root of 422061387 is about 750.1104352935.

The spelling of 422061387 in words is "four hundred twenty-two million, sixty-one thousand, three hundred eighty-seven".