421942970 has 16 divisors (see below), whose sum is σ = 775657728. Its totient is φ = 165186000.

The previous prime is 421942933. The next prime is 421942973. The reversal of 421942970 is 79249124.

It is not an unprimeable number, because it can be changed into a prime (421942973) 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, 448406 + ... + 449345.

It is an arithmetic number, because the mean of its divisors is an integer number (48478608).

Almost surely, 2^421942970 is an apocalyptic number.

421942970 is a deficient number, since it is larger than the sum of its proper divisors (353714758).

421942970 is a wasteful number, since it uses less digits than its factorization.

421942970 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 897805.

The product of its (nonzero) digits is 36288, while the sum is 38.

The square root of 421942970 is about 20541.2504487921. The cubic root of 421942970 is about 750.0402763556.

The spelling of 421942970 in words is "four hundred twenty-one million, nine hundred forty-two thousand, nine hundred seventy".