1955359406 has 72 divisors (see below), whose sum is σ = 4030788744. Its totient is φ = 703160640.

The previous prime is 1955359381. The next prime is 1955359429. The reversal of 1955359406 is 6049535591.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 176816 + ... + 187548.

It is an arithmetic number, because the mean of its divisors is an integer number (55983177).

Almost surely, 2^1955359406 is an apocalyptic number.

1955359406 is an abundant number, since it is smaller than the sum of its proper divisors (2075429338).

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

1955359406 is a wasteful number, since it uses less digits than its factorization.

1955359406 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10786 (or 10766 counting only the distinct ones).

The product of its (nonzero) digits is 729000, while the sum is 47.

The square root of 1955359406 is about 44219.4460164304. The cubic root of 1955359406 is about 1250.4764916215.

The spelling of 1955359406 in words is "one billion, nine hundred fifty-five million, three hundred fifty-nine thousand, four hundred six".