1974345 has 16 divisors (see below), whose sum is σ = 3233472. Its totient is φ = 1028160.

The previous prime is 1974331. The next prime is 1974353. The reversal of 1974345 is 5434791.

It is not a de Polignac number, because 1974345 - 2¹¹ = 1972297 is a prime.

It is a d-powerful number, because it can be written as 1 + 9 + 7⁵ + 4³ + 3⁵ + 4⁶ + 5⁹ .

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 886 + ... + 2175.

It is an arithmetic number, because the mean of its divisors is an integer number (202092).

2^1974345 is an apocalyptic number.

1974345 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

1974345 is a deficient number, since it is larger than the sum of its proper divisors (1259127).

1974345 is a wasteful number, since it uses less digits than its factorization.

1974345 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3112.

The product of its digits is 15120, while the sum is 33.

The square root of 1974345 is about 1405.1138743888. The cubic root of 1974345 is about 125.4510637078.

The spelling of 1974345 in words is "one million, nine hundred seventy-four thousand, three hundred forty-five".