1974431 has 16 divisors (see below), whose sum is σ = 2227104. Its totient is φ = 1741824.

The previous prime is 1974403. The next prime is 1974433. The reversal of 1974431 is 1344791.

It is a cyclic number.

It is not a de Polignac number, because 1974431 - 2¹⁰ = 1973407 is a prime.

It is a super-2 number, since 2×1974431² = 7796755547522, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 1974394 and 1974403.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1974433) 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, 27011 + ... + 27083.

It is an arithmetic number, because the mean of its divisors is an integer number (139194).

2^1974431 is an apocalyptic number.

1974431 is a deficient number, since it is larger than the sum of its proper divisors (252673).

1974431 is a wasteful number, since it uses less digits than its factorization.

1974431 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 170.

The product of its digits is 3024, while the sum is 29.

The square root of 1974431 is about 1405.1444765575. The cubic root of 1974431 is about 125.4528851785.

The spelling of 1974431 in words is "one million, nine hundred seventy-four thousand, four hundred thirty-one".