1020006264 has 32 divisors (see below), whose sum is σ = 2551248720. Its totient is φ = 339837696.

The previous prime is 1020006257. The next prime is 1020006271. The reversal of 1020006264 is 4626000201.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (1020006257) and next prime (1020006271).

It is a self number, because there is not a number n which added to its sum of digits gives 1020006264.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 46884 + ... + 65100.

Almost surely, 2^1020006264 is an apocalyptic number.

It is an amenable number.

1020006264 is an abundant number, since it is smaller than the sum of its proper divisors (1531242456).

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

1020006264 is a wasteful number, since it uses less digits than its factorization.

1020006264 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20559 (or 20555 counting only the distinct ones).

The product of its (nonzero) digits is 576, while the sum is 21.

The square root of 1020006264 is about 31937.5369119160. The cubic root of 1020006264 is about 1006.6247701718.

Adding to 1020006264 its reverse (4626000201), we get a palindrome (5646006465).

The spelling of 1020006264 in words is "one billion, twenty million, six thousand, two hundred sixty-four".