1421073000 has 96 divisors (see below), whose sum is σ = 4803257160. Its totient is φ = 378950400.

The previous prime is 1421072999. The next prime is 1421073029. The reversal of 1421073000 is 3701241.

It can be written as a sum of positive squares in 4 ways, for example, as 242798724 + 1178274276 = 15582^2 + 34326^2 .

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, 69949 + ... + 87948.

Almost surely, 2^1421073000 is an apocalyptic number.

1421073000 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1421073000 is an abundant number, since it is smaller than the sum of its proper divisors (3382184160).

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

1421073000 is a wasteful number, since it uses less digits than its factorization.

1421073000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 157924 (or 157907 counting only the distinct ones).

The product of its (nonzero) digits is 168, while the sum is 18.

The square root of 1421073000 is about 37697.1219060554. The cubic root of 1421073000 is about 1124.2739018325.

Adding to 1421073000 its reverse (3701241), we get a palindrome (1424774241).

The spelling of 1421073000 in words is "one billion, four hundred twenty-one million, seventy-three thousand".