420374 has 4 divisors (see below), whose sum is σ = 630564. Its totient is φ = 210186.

The previous prime is 420367. The next prime is 420383. The reversal of 420374 is 473024.

It is a happy number.

420374 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

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

It is a congruent number.

It is an unprimeable number.

420374 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 105092 + ... + 105095.

It is an arithmetic number, because the mean of its divisors is an integer number (157641).

2⁴²⁰³⁷⁴ is an apocalyptic number.

420374 is a deficient number, since it is larger than the sum of its proper divisors (210190).

420374 is a wasteful number, since it uses less digits than its factorization.

420374 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 210189.

The product of its (nonzero) digits is 672, while the sum is 20.

The square root of 420374 is about 648.3625528977. The cubic root of 420374 is about 74.9109461525.

Adding to 420374 its reverse (473024), we get a palindrome (893398).

Subtracting 420374 from its reverse (473024), we obtain a triangular number (52650 = T₃₂₄).

It can be divided in two parts, 420 and 374, that multiplied together give a triangular number (157080 = T₅₆₀).

The spelling of 420374 in words is "four hundred twenty thousand, three hundred seventy-four", and thus it is an iban number.