1595642478 has 48 divisors (see below), whose sum is σ = 3325040640. Its totient is φ = 510436080.

The previous prime is 1595642473. The next prime is 1595642479. The reversal of 1595642478 is 8742465951.

It is a self number, because there is not a number n which added to its sum of digits gives 1595642478.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1595642473) 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, 731193 + ... + 733371.

It is an arithmetic number, because the mean of its divisors is an integer number (69271680).

Almost surely, 2^1595642478 is an apocalyptic number.

1595642478 is an abundant number, since it is smaller than the sum of its proper divisors (1729398162).

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

1595642478 is a wasteful number, since it uses less digits than its factorization.

1595642478 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2373 (or 2342 counting only the distinct ones).

The product of its digits is 2419200, while the sum is 51.

The square root of 1595642478 is about 39945.4938384795. The cubic root of 1595642478 is about 1168.5443406117.

The spelling of 1595642478 in words is "one billion, five hundred ninety-five million, six hundred forty-two thousand, four hundred seventy-eight".