1420090238 has 8 divisors (see below), whose sum is σ = 2434440432. Its totient is φ = 608610096.

The previous prime is 1420090237. The next prime is 1420090271. The reversal of 1420090238 is 8320900241.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a self number, because there is not a number n which added to its sum of digits gives 1420090238.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1420090237) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 50717495 + ... + 50717522.

It is an arithmetic number, because the mean of its divisors is an integer number (304305054).

Almost surely, 2^1420090238 is an apocalyptic number.

1420090238 is a deficient number, since it is larger than the sum of its proper divisors (1014350194).

1420090238 is a wasteful number, since it uses less digits than its factorization.

1420090238 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 101435026.

The product of its (nonzero) digits is 3456, while the sum is 29.

The square root of 1420090238 is about 37684.0846777522. The cubic root of 1420090238 is about 1124.0146731915.

Adding to 1420090238 its reverse (8320900241), we get a palindrome (9740990479).

The spelling of 1420090238 in words is "one billion, four hundred twenty million, ninety thousand, two hundred thirty-eight".