1597045380 has 96 divisors (see below), whose sum is σ = 5379548160. Its totient is φ = 345824640.

The previous prime is 1597045367. The next prime is 1597045381. The reversal of 1597045380 is 835407951.

It is a Harshad number since it is a multiple of its sum of digits (42).

It is not an unprimeable number, because it can be changed into a prime (1597045381) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 92086 + ... + 108045.

It is an arithmetic number, because the mean of its divisors is an integer number (56036960).

Almost surely, 2^1597045380 is an apocalyptic number.

1597045380 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1597045380 is an abundant number, since it is smaller than the sum of its proper divisors (3782502780).

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

1597045380 is a wasteful number, since it uses less digits than its factorization.

1597045380 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 200169 (or 200167 counting only the distinct ones).

The product of its (nonzero) digits is 151200, while the sum is 42.

The square root of 1597045380 is about 39963.0501838886. The cubic root of 1597045380 is about 1168.8867048956.

The spelling of 1597045380 in words is "one billion, five hundred ninety-seven million, forty-five thousand, three hundred eighty".