1420224015 has 16 divisors (see below), whose sum is σ = 2596981248. Its totient is φ = 649245216.

The previous prime is 1420223999. The next prime is 1420224019. The reversal of 1420224015 is 5104220241.

It is not a de Polignac number, because 1420224015 - 2⁴ = 1420223999 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is a junction number, because it is equal to n+sod(n) for n = 1420223982 and 1420224000.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1420224019) 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, 6762867 + ... + 6763076.

It is an arithmetic number, because the mean of its divisors is an integer number (162311328).

Almost surely, 2^1420224015 is an apocalyptic number.

1420224015 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

1420224015 is a deficient number, since it is larger than the sum of its proper divisors (1176757233).

1420224015 is a wasteful number, since it uses less digits than its factorization.

1420224015 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13525958.

The product of its (nonzero) digits is 640, while the sum is 21.

The square root of 1420224015 is about 37685.8596160417. The cubic root of 1420224015 is about 1124.0499673312.

Adding to 1420224015 its reverse (5104220241), we get a palindrome (6524444256).

The spelling of 1420224015 in words is "one billion, four hundred twenty million, two hundred twenty-four thousand, fifteen".