1461957396 has 72 divisors (see below), whose sum is σ = 3647664384. Its totient is φ = 455239680.

The previous prime is 1461957391. The next prime is 1461957397. The reversal of 1461957396 is 6937591641.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1461957391) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 310516 + ... + 315188.

Almost surely, 2^1461957396 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1461957396, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1823832192).

1461957396 is an abundant number, since it is smaller than the sum of its proper divisors (2185706988).

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

1461957396 is a wasteful number, since it uses less digits than its factorization.

1461957396 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4769 (or 4738 counting only the distinct ones).

The product of its digits is 1224720, while the sum is 51.

The square root of 1461957396 is about 38235.5514671882. The cubic root of 1461957396 is about 1134.9539453584.

The spelling of 1461957396 in words is "one billion, four hundred sixty-one million, nine hundred fifty-seven thousand, three hundred ninety-six".