421213474 has 16 divisors (see below), whose sum is σ = 689952096. Its totient is φ = 191268000.

The previous prime is 421213411. The next prime is 421213493. The reversal of 421213474 is 474312124.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 14014 + ... + 32230.

It is an arithmetic number, because the mean of its divisors is an integer number (43122006).

Almost surely, 2^421213474 is an apocalyptic number.

421213474 is a deficient number, since it is larger than the sum of its proper divisors (268738622).

421213474 is a wasteful number, since it uses less digits than its factorization.

421213474 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19281.

The product of its digits is 5376, while the sum is 28.

The square root of 421213474 is about 20523.4859124857. The cubic root of 421213474 is about 749.6077795125.

Adding to 421213474 its reverse (474312124), we get a palindrome (895525598).

The spelling of 421213474 in words is "four hundred twenty-one million, two hundred thirteen thousand, four hundred seventy-four".