1422672390 has 64 divisors (see below), whose sum is σ = 3821584320. Its totient is φ = 376600320.

The previous prime is 1422672379. The next prime is 1422672397. The reversal of 1422672390 is 932762241.

1422672390 is a `hidden beast` number, since 1 + 4 + 2 + 267 + 2 + 390 = 666.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1422672397) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 17760 + ... + 56220.

It is an arithmetic number, because the mean of its divisors is an integer number (59712255).

Almost surely, 2^1422672390 is an apocalyptic number.

1422672390 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 1422672390, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1910792160).

1422672390 is an abundant number, since it is smaller than the sum of its proper divisors (2398911930).

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

1422672390 is a wasteful number, since it uses less digits than its factorization.

1422672390 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 38614 (or 38608 counting only the distinct ones).

The product of its (nonzero) digits is 36288, while the sum is 36.

The square root of 1422672390 is about 37718.3296289748. The cubic root of 1422672390 is about 1124.6955264927.

The spelling of 1422672390 in words is "one billion, four hundred twenty-two million, six hundred seventy-two thousand, three hundred ninety".