420639098 has 16 divisors (see below), whose sum is σ = 696055680. Its totient is φ = 189050400.

The previous prime is 420639097. The next prime is 420639101. The reversal of 420639098 is 890936024.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (420639091) 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, 105458 + ... + 109373.

It is an arithmetic number, because the mean of its divisors is an integer number (43503480).

Almost surely, 2^420639098 is an apocalyptic number.

420639098 is a deficient number, since it is larger than the sum of its proper divisors (275416582).

420639098 is a wasteful number, since it uses less digits than its factorization.

420639098 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 214933.

The product of its (nonzero) digits is 93312, while the sum is 41.

The square root of 420639098 is about 20509.4879994602. The cubic root of 420639098 is about 749.2668972770.

The spelling of 420639098 in words is "four hundred twenty million, six hundred thirty-nine thousand, ninety-eight".