1591955040 has 96 divisors (see below), whose sum is σ = 5400422496. Its totient is φ = 391864320.

The previous prime is 1591954999. The next prime is 1591955047. The reversal of 1591955040 is 405591951.

1591955040 is digitally balanced in base 4, because in such base it contains all the possibile digits an equal number of times.

It is a tau number, because it is divible by the number of its divisors (96).

It is a Harshad number since it is a multiple of its sum of digits (39).

It is a self number, because there is not a number n which added to its sum of digits gives 1591955040.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1591955047) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 121321 + ... + 133800.

It is an arithmetic number, because the mean of its divisors is an integer number (56254401).

Almost surely, 2^1591955040 is an apocalyptic number.

1591955040 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1591955040 is an abundant number, since it is smaller than the sum of its proper divisors (3808467456).

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

1591955040 is a wasteful number, since it uses less digits than its factorization.

1591955040 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 255152 (or 255144 counting only the distinct ones).

The product of its (nonzero) digits is 40500, while the sum is 39.

The square root of 1591955040 is about 39899.3112722513. The cubic root of 1591955040 is about 1167.6435000690.

The spelling of 1591955040 in words is "one billion, five hundred ninety-one million, nine hundred fifty-five thousand, forty".