961880436 has 36 divisors (see below), whose sum is σ = 2652459264. Its totient is φ = 291478800.

The previous prime is 961880429. The next prime is 961880449. The reversal of 961880436 is 634088169.

It is a tau number, because it is divible by the number of its divisors (36).

It is a junction number, because it is equal to n+sod(n) for n = 961880391 and 961880400.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1214100 + ... + 1214891.

It is an arithmetic number, because the mean of its divisors is an integer number (73679424).

Almost surely, 2^961880436 is an apocalyptic number.

It is an amenable number.

961880436 is an abundant number, since it is smaller than the sum of its proper divisors (1690578828).

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

961880436 is a wasteful number, since it uses less digits than its factorization.

961880436 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2429012 (or 2429007 counting only the distinct ones).

The product of its (nonzero) digits is 248832, while the sum is 45.

The square root of 961880436 is about 31014.1973296102. The cubic root of 961880436 is about 987.1285143523.

The spelling of 961880436 in words is "nine hundred sixty-one million, eight hundred eighty thousand, four hundred thirty-six".