1000072 has 16 divisors (see below), whose sum is σ = 1921500. Its totient is φ = 487680.

The previous prime is 1000039. The next prime is 1000081. The reversal of 1000072 is 2700001.

It can be written as a sum of positive squares in 2 ways, for example, as 763876 + 236196 = 874^2 + 486^2 .

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, 1197 + ... + 1852.

2^1000072 is an apocalyptic number.

It is an amenable number.

1000072 is a deficient number, since it is larger than the sum of its proper divisors (921428).

1000072 is a wasteful number, since it uses less digits than its factorization.

1000072 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3096 (or 3092 counting only the distinct ones).

The product of its (nonzero) digits is 14, while the sum is 10.

The square root of 1000072 is about 1000.0359993520. The cubic root of 1000072 is about 100.0023999424.

Adding to 1000072 its reverse (2700001), we get a palindrome (3700073).

The spelling of 1000072 in words is "one million, seventy-two", and thus it is an aban number and an uban number.