1421365028 has 12 divisors (see below), whose sum is σ = 2487703680. Its totient is φ = 710592552.

The previous prime is 1421364983. The next prime is 1421365061. The reversal of 1421365028 is 8205631241.

It is a junction number, because it is equal to n+sod(n) for n = 1421364985 and 1421365003.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 23513 + ... + 58271.

It is an arithmetic number, because the mean of its divisors is an integer number (207308640).

Almost surely, 2^1421365028 is an apocalyptic number.

It is an amenable number.

1421365028 is a deficient number, since it is larger than the sum of its proper divisors (1066338652).

1421365028 is a wasteful number, since it uses less digits than its factorization.

1421365028 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 44986 (or 44984 counting only the distinct ones).

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

The square root of 1421365028 is about 37700.9950531813. The cubic root of 1421365028 is about 1124.3509086604.

Adding to 1421365028 its reverse (8205631241), we get a palindrome (9626996269).

The spelling of 1421365028 in words is "one billion, four hundred twenty-one million, three hundred sixty-five thousand, twenty-eight".