421912370 has 16 divisors (see below), whose sum is σ = 828482688. Its totient is φ = 153422640.

The previous prime is 421912367. The next prime is 421912397. The reversal of 421912370 is 73219124.

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1917674 + ... + 1917893.

It is an arithmetic number, because the mean of its divisors is an integer number (51780168).

Almost surely, 2^421912370 is an apocalyptic number.

421912370 is a deficient number, since it is larger than the sum of its proper divisors (406570318).

421912370 is a wasteful number, since it uses less digits than its factorization.

421912370 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3835585.

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

The square root of 421912370 is about 20540.5055926090. The cubic root of 421912370 is about 750.0221445313.

The spelling of 421912370 in words is "four hundred twenty-one million, nine hundred twelve thousand, three hundred seventy".