1422001240 has 32 divisors (see below), whose sum is σ = 3490367760. Its totient is φ = 517091200.

The previous prime is 1422001213. The next prime is 1422001241. The reversal of 1422001240 is 421002241.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1422001241) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1615471 + ... + 1616350.

Almost surely, 2^1422001240 is an apocalyptic number.

1422001240 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1422001240 is an abundant number, since it is smaller than the sum of its proper divisors (2068366520).

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

1422001240 is a wasteful number, since it uses less digits than its factorization.

1422001240 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3231843 (or 3231839 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 16.

The square root of 1422001240 is about 37709.4317114432. The cubic root of 1422001240 is about 1124.5186391694.

Adding to 1422001240 its reverse (421002241), we get a palindrome (1843003481).

It can be divided in two parts, 1422001 and 240, that added together give a palindrome (1422241).

The spelling of 1422001240 in words is "one billion, four hundred twenty-two million, one thousand, two hundred forty".