422015397 has 16 divisors (see below), whose sum is σ = 575638272. Its totient is φ = 274888640.

The previous prime is 422015389. The next prime is 422015417. The reversal of 422015397 is 793510224.

It is a cyclic number.

It is not a de Polignac number, because 422015397 - 2³ = 422015389 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (422015357) 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, 93247 + ... + 97667.

It is an arithmetic number, because the mean of its divisors is an integer number (35977392).

Almost surely, 2^422015397 is an apocalyptic number.

422015397 is a gapful number since it is divisible by the number (47) formed by its first and last digit.

It is an amenable number.

422015397 is a deficient number, since it is larger than the sum of its proper divisors (153622875).

422015397 is a wasteful number, since it uses less digits than its factorization.

422015397 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5148.

The product of its (nonzero) digits is 15120, while the sum is 33.

The square root of 422015397 is about 20543.0133378723. The cubic root of 422015397 is about 750.0831889947.

The spelling of 422015397 in words is "four hundred twenty-two million, fifteen thousand, three hundred ninety-seven".