420679342 has 16 divisors (see below), whose sum is σ = 670813200. Its totient is φ = 197294400.

The previous prime is 420679333. The next prime is 420679349. The reversal of 420679342 is 243976024.

It is a super-2 number, since 2×420679342² = 353942217571105928, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (420679349) 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, 50967 + ... + 58642.

It is an arithmetic number, because the mean of its divisors is an integer number (41925825).

Almost surely, 2^420679342 is an apocalyptic number.

420679342 is a deficient number, since it is larger than the sum of its proper divisors (250133858).

420679342 is a wasteful number, since it uses less digits than its factorization.

420679342 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 109731.

The product of its (nonzero) digits is 72576, while the sum is 37.

The square root of 420679342 is about 20510.4690828855. The cubic root of 420679342 is about 749.2907915017.

The spelling of 420679342 in words is "four hundred twenty million, six hundred seventy-nine thousand, three hundred forty-two".