1897923034 has 32 divisors (see below), whose sum is σ = 3428352000. Its totient is φ = 769791600.

The previous prime is 1897923023. The next prime is 1897923037. The reversal of 1897923034 is 4303297981.

It is a super-2 number, since 2×1897923034² = 7204223685975530312, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (1897923037) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 303067 + ... + 309265.

It is an arithmetic number, because the mean of its divisors is an integer number (107136000).

Almost surely, 2^1897923034 is an apocalyptic number.

1897923034 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

1897923034 is a deficient number, since it is larger than the sum of its proper divisors (1530428966).

1897923034 is a wasteful number, since it uses less digits than its factorization.

1897923034 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7378.

The product of its (nonzero) digits is 326592, while the sum is 46.

The square root of 1897923034 is about 43565.1584870295. The cubic root of 1897923034 is about 1238.1108577412.

The spelling of 1897923034 in words is "one billion, eight hundred ninety-seven million, nine hundred twenty-three thousand, thirty-four".