1421004100 has 36 divisors (see below), whose sum is σ = 3087060228. Its totient is φ = 567760000.

The previous prime is 1421004083. The next prime is 1421004107. The reversal of 1421004100 is 14001241.

It can be written as a sum of positive squares in 6 ways, for example, as 119814916 + 1301189184 = 10946^2 + 36072^2 .

It is not an unprimeable number, because it can be changed into a prime (1421004107) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 86550 + ... + 101650.

It is an arithmetic number, because the mean of its divisors is an integer number (85751673).

Almost surely, 2^1421004100 is an apocalyptic number.

1421004100 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1421004100 is an abundant number, since it is smaller than the sum of its proper divisors (1666056128).

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

1421004100 is a wasteful number, since it uses less digits than its factorization.

1421004100 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16056 (or 16049 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 13.

The square root of 1421004100 is about 37696.2080321085. The cubic root of 1421004100 is about 1124.2557315898.

Adding to 1421004100 its reverse (14001241), we get a palindrome (1435005341).

The spelling of 1421004100 in words is "one billion, four hundred twenty-one million, four thousand, one hundred".