1465421040 has 120 divisors (see below), whose sum is σ = 5091147360. Its totient is φ = 377298432.

The previous prime is 1465421033. The next prime is 1465421051. The reversal of 1465421040 is 401245641.

1465421040 is a `hidden beast` number, since 1 + 4 + 654 + 2 + 1 + 0 + 4 + 0 = 666.

It is a tau number, because it is divible by the number of its divisors (120).

It is a junction number, because it is equal to n+sod(n) for n = 1465420995 and 1465421013.

It is a congruent number.

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, 14212 + ... + 55971.

It is an arithmetic number, because the mean of its divisors is an integer number (42426228).

Almost surely, 2^1465421040 is an apocalyptic number.

1465421040 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 1465421040, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2545573680).

1465421040 is an abundant number, since it is smaller than the sum of its proper divisors (3625726320).

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

1465421040 is a wasteful number, since it uses less digits than its factorization.

1465421040 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 70231 (or 70222 counting only the distinct ones).

The product of its (nonzero) digits is 3840, while the sum is 27.

The square root of 1465421040 is about 38280.8181730746. The cubic root of 1465421040 is about 1135.8495428257.

Adding to 1465421040 its reverse (401245641), we get a palindrome (1866666681).

The spelling of 1465421040 in words is "one billion, four hundred sixty-five million, four hundred twenty-one thousand, forty".