1065264240 has 40 divisors (see below), whose sum is σ = 3302319888. Its totient is φ = 284070400.

The previous prime is 1065264199. The next prime is 1065264269. The reversal of 1065264240 is 424625601.

It is a tau number, because it is divible by the number of its divisors (40).

It is a super-2 number, since 2×1065264240² = 2269575802045555200, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a junction number, because it is equal to n+sod(n) for n = 1065264198 and 1065264207.

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, 2219061 + ... + 2219540.

Almost surely, 2^1065264240 is an apocalyptic number.

1065264240 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1065264240 is an abundant number, since it is smaller than the sum of its proper divisors (2237055648).

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

1065264240 is a wasteful number, since it uses less digits than its factorization.

1065264240 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4438617 (or 4438611 counting only the distinct ones).

The product of its (nonzero) digits is 11520, while the sum is 30.

The square root of 1065264240 is about 32638.3859895063. The cubic root of 1065264240 is about 1021.2979248079.

Adding to 1065264240 its reverse (424625601), we get a palindrome (1489889841).

The spelling of 1065264240 in words is "one billion, sixty-five million, two hundred sixty-four thousand, two hundred forty".