1421030052 has 72 divisors (see below), whose sum is σ = 3915073344. Its totient is φ = 431960256.

The previous prime is 1421030041. The next prime is 1421030063. The reversal of 1421030052 is 2500301241.

It is an interprime number because it is at equal distance from previous prime (1421030041) and next prime (1421030063).

It is a Harshad number since it is a multiple of its sum of digits (18).

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 20553 + ... + 57135.

Almost surely, 2^1421030052 is an apocalyptic number.

1421030052 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1421030052, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1957536672).

1421030052 is an abundant number, since it is smaller than the sum of its proper divisors (2494043292).

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

1421030052 is a wasteful number, since it uses less digits than its factorization.

1421030052 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 36689 (or 36684 counting only the distinct ones).

The product of its (nonzero) digits is 240, while the sum is 18.

The square root of 1421030052 is about 37696.5522561414. The cubic root of 1421030052 is about 1124.2625756956.

Adding to 1421030052 its reverse (2500301241), we get a palindrome (3921331293).

The spelling of 1421030052 in words is "one billion, four hundred twenty-one million, thirty thousand, fifty-two".