1465012340 has 108 divisors (see below), whose sum is σ = 3460292388. Its totient is φ = 520565760.

The previous prime is 1465012319. The next prime is 1465012391. The reversal of 1465012340 is 432105641.

It can be written as a sum of positive squares in 2 ways, for example, as 592046224 + 872966116 = 24332^2 + 29546^2 .

It is a super-2 number, since 2×1465012340² = 4292522312704551200, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 15103172 + ... + 15103268.

Almost surely, 2^1465012340 is an apocalyptic number.

1465012340 is a gapful number since it is divisible by the number (10) 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 1465012340, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1730146194).

1465012340 is an abundant number, since it is smaller than the sum of its proper divisors (1995280048).

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

1465012340 is a wasteful number, since it uses less digits than its factorization.

1465012340 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 286 (or 194 counting only the distinct ones).

The product of its (nonzero) digits is 2880, while the sum is 26.

The square root of 1465012340 is about 38275.4796181576. The cubic root of 1465012340 is about 1135.7439383933.

Adding to 1465012340 its reverse (432105641), we get a palindrome (1897117981).

It can be divided in two parts, 146501 and 2340, that added together give a palindrome (148841).

The spelling of 1465012340 in words is "one billion, four hundred sixty-five million, twelve thousand, three hundred forty".