1897132376 has 32 divisors (see below), whose sum is σ = 3656499840. Its totient is φ = 922111488.

The previous prime is 1897132337. The next prime is 1897132379. The reversal of 1897132376 is 6732317981.

It is a super-2 number, since 2×1897132376² = 7198222504134810752, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 1897132376.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1897132379) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 457625 + ... + 461751.

It is an arithmetic number, because the mean of its divisors is an integer number (114265620).

Almost surely, 2^1897132376 is an apocalyptic number.

It is an amenable number.

1897132376 is a deficient number, since it is larger than the sum of its proper divisors (1759367464).

1897132376 is a wasteful number, since it uses less digits than its factorization.

1897132376 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5723 (or 5719 counting only the distinct ones).

The product of its digits is 381024, while the sum is 47.

The square root of 1897132376 is about 43556.0831113175. The cubic root of 1897132376 is about 1237.9389051725.

The spelling of 1897132376 in words is "one billion, eight hundred ninety-seven million, one hundred thirty-two thousand, three hundred seventy-six".