1161628435 has 48 divisors (see below), whose sum is σ = 1594365696. Its totient is φ = 811008000.

The previous prime is 1161628417. The next prime is 1161628439. The reversal of 1161628435 is 5348261611.

1161628435 = 3195² + 3196² + ... + 3304².

It is a happy number.

It is a de Polignac number, because none of the positive numbers 2^k-1161628435 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1161628394 and 1161628403.

It is not an unprimeable number, because it can be changed into a prime (1161628439) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 4519827 + ... + 4520083.

It is an arithmetic number, because the mean of its divisors is an integer number (33215952).

Almost surely, 2^1161628435 is an apocalyptic number.

1161628435 is a deficient number, since it is larger than the sum of its proper divisors (432737261).

1161628435 is a wasteful number, since it uses less digits than its factorization.

1161628435 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 556 (or 545 counting only the distinct ones).

The product of its digits is 34560, while the sum is 37.

The square root of 1161628435 is about 34082.6705966537. The cubic root of 1161628435 is about 1051.2090185326.

The spelling of 1161628435 in words is "one billion, one hundred sixty-one million, six hundred twenty-eight thousand, four hundred thirty-five".