1000001420 has 24 divisors (see below), whose sum is σ = 2290912848. Its totient is φ = 363636800.

The previous prime is 1000001413. The next prime is 1000001447. The reversal of 1000001420 is 241000001.

It is a junction number, because it is equal to n+sod(n) for n = 1000001398 and 1000001407.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2272511 + ... + 2272950.

It is an arithmetic number, because the mean of its divisors is an integer number (95454702).

Almost surely, 2^1000001420 is an apocalyptic number.

1000001420 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1000001420 is an abundant number, since it is smaller than the sum of its proper divisors (1290911428).

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

1000001420 is a wasteful number, since it uses less digits than its factorization.

1000001420 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4545481 (or 4545479 counting only the distinct ones).

The product of its (nonzero) digits is 8, while the sum is 8.

The square root of 1000001420 is about 31622.7990538472. The cubic root of 1000001420 is about 1000.0004733331. Note that the first 3 decimals are identical.

Adding to 1000001420 its reverse (241000001), we get a palindrome (1241001421).

The spelling of 1000001420 in words is "one billion, one thousand, four hundred twenty".