1421516426 has 32 divisors (see below), whose sum is σ = 2555020800. Its totient is φ = 585517680.

The previous prime is 1421516423. The next prime is 1421516479. The reversal of 1421516426 is 6246151241.

It is a junction number, because it is equal to n+sod(n) for n = 1421516392 and 1421516401.

It is not an unprimeable number, because it can be changed into a prime (1421516423) 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, 64316 + ... + 83543.

It is an arithmetic number, because the mean of its divisors is an integer number (79844400).

Almost surely, 2^1421516426 is an apocalyptic number.

1421516426 is a deficient number, since it is larger than the sum of its proper divisors (1133504374).

1421516426 is a wasteful number, since it uses less digits than its factorization.

1421516426 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 147914.

The product of its digits is 11520, while the sum is 32.

The square root of 1421516426 is about 37703.0028777550. The cubic root of 1421516426 is about 1124.3908276660.

Adding to 1421516426 its reverse (6246151241), we get a palindrome (7667667667).

The spelling of 1421516426 in words is "one billion, four hundred twenty-one million, five hundred sixteen thousand, four hundred twenty-six".