31434419 has 4 divisors (see below), whose sum is σ = 32165496. Its totient is φ = 30703344.

The previous prime is 31434409. The next prime is 31434421. The reversal of 31434419 is 91443413.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 31434419 - 2⁸ = 31434163 is a prime.

It is a super-2 number, since 2×31434419² = 1976245395735122, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 31434391 and 31434400.

It is not an unprimeable number, because it can be changed into a prime (31434409) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 365474 + ... + 365559.

It is an arithmetic number, because the mean of its divisors is an integer number (8041374).

Almost surely, 2^31434419 is an apocalyptic number.

31434419 is a deficient number, since it is larger than the sum of its proper divisors (731077).

31434419 is an equidigital number, since it uses as much as digits as its factorization.

31434419 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 731076.

The product of its digits is 5184, while the sum is 29.

The square root of 31434419 is about 5606.6406162692. The cubic root of 31434419 is about 315.5986566126.

The spelling of 31434419 in words is "thirty-one million, four hundred thirty-four thousand, four hundred nineteen".