1974429 has 8 divisors (see below), whose sum is σ = 2925120. Its totient is φ = 1316268.

The previous prime is 1974403. The next prime is 1974433. The reversal of 1974429 is 9244791.

It is not a de Polignac number, because 1974429 - 2¹¹ = 1972381 is a prime.

It is a Curzon number.

1974429 is a lucky number.

It is a junction number, because it is equal to n+sod(n) for n = 1974393 and 1974402.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1974029) 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, 36537 + ... + 36590.

It is an arithmetic number, because the mean of its divisors is an integer number (365640).

2^1974429 is an apocalyptic number.

It is an amenable number.

1974429 is a deficient number, since it is larger than the sum of its proper divisors (950691).

1974429 is an equidigital number, since it uses as much as digits as its factorization.

1974429 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 73136 (or 73130 counting only the distinct ones).

The product of its digits is 18144, while the sum is 36.

The square root of 1974429 is about 1405.1437648867. The cubic root of 1974429 is about 125.4528428193.

The spelling of 1974429 in words is "one million, nine hundred seventy-four thousand, four hundred twenty-nine".