1465532838 has 160 divisors (see below), whose sum is σ = 4335648768. Its totient is φ = 358214400.

The previous prime is 1465532819. The next prime is 1465532863. The reversal of 1465532838 is 8382355641.

1465532838 is a `hidden beast` number, since 1 + 46 + 553 + 28 + 38 = 666.

It is a junction number, because it is equal to n+sod(n) for n = 1465532793 and 1465532802.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 79 ways as a sum of consecutive naturals, for example, 208603 + ... + 215513.

Almost surely, 2^1465532838 is an apocalyptic number.

1465532838 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 1465532838, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2167824384).

1465532838 is an abundant number, since it is smaller than the sum of its proper divisors (2870115930).

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

1465532838 is a wasteful number, since it uses less digits than its factorization.

1465532838 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6960 (or 6951 counting only the distinct ones).

The product of its digits is 691200, while the sum is 45.

The square root of 1465532838 is about 38282.2783804726. The cubic root of 1465532838 is about 1135.8784270109.

The spelling of 1465532838 in words is "one billion, four hundred sixty-five million, five hundred thirty-two thousand, eight hundred thirty-eight".