1422637590 has 64 divisors (see below), whose sum is σ = 3734449920. Its totient is φ = 343981440.

The previous prime is 1422637583. The next prime is 1422637603. The reversal of 1422637590 is 957362241.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 125581 + ... + 136439.

It is an arithmetic number, because the mean of its divisors is an integer number (58350780).

Almost surely, 2^1422637590 is an apocalyptic number.

1422637590 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 1422637590, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1867224960).

1422637590 is an abundant number, since it is smaller than the sum of its proper divisors (2311812330).

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

1422637590 is a wasteful number, since it uses less digits than its factorization.

1422637590 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11277.

The product of its (nonzero) digits is 90720, while the sum is 39.

The square root of 1422637590 is about 37717.8683119818. The cubic root of 1422637590 is about 1124.6863560227.

The spelling of 1422637590 in words is "one billion, four hundred twenty-two million, six hundred thirty-seven thousand, five hundred ninety".