1421200042 has 32 divisors (see below), whose sum is σ = 2243998080. Its totient is φ = 674130240.

The previous prime is 1421199973. The next prime is 1421200063. The reversal of 1421200042 is 2400021241.

It is a junction number, because it is equal to n+sod(n) for n = 1421199989 and 1421200025.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2318128 + ... + 2318740.

It is an arithmetic number, because the mean of its divisors is an integer number (70124940).

Almost surely, 2^1421200042 is an apocalyptic number.

1421200042 is a deficient number, since it is larger than the sum of its proper divisors (822798038).

1421200042 is a wasteful number, since it uses less digits than its factorization.

1421200042 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1278.

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

The square root of 1421200042 is about 37698.8069041979. The cubic root of 1421200042 is about 1124.3074036885.

Adding to 1421200042 its reverse (2400021241), we get a palindrome (3821221283).

The spelling of 1421200042 in words is "one billion, four hundred twenty-one million, two hundred thousand, forty-two".