420342998 has 4 divisors (see below), whose sum is σ = 630514500. Its totient is φ = 210171498.

The previous prime is 420342971. The next prime is 420343019. The reversal of 420342998 is 899243024.

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

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 105085748 + ... + 105085751.

It is an arithmetic number, because the mean of its divisors is an integer number (157628625).

Almost surely, 2^420342998 is an apocalyptic number.

420342998 is a deficient number, since it is larger than the sum of its proper divisors (210171502).

420342998 is a wasteful number, since it uses less digits than its factorization.

420342998 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 210171501.

The product of its (nonzero) digits is 124416, while the sum is 41.

The square root of 420342998 is about 20502.2681184302. The cubic root of 420342998 is about 749.0910458110.

The spelling of 420342998 in words is "four hundred twenty million, three hundred forty-two thousand, nine hundred ninety-eight".