420696628 has 12 divisors (see below), whose sum is σ = 803148192. Its totient is φ = 191225720.

The previous prime is 420696607. The next prime is 420696631. The reversal of 420696628 is 826696024.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4780600 + ... + 4780687.

It is an arithmetic number, because the mean of its divisors is an integer number (66929016).

Almost surely, 2^420696628 is an apocalyptic number.

It is an amenable number.

420696628 is a deficient number, since it is larger than the sum of its proper divisors (382451564).

420696628 is a wasteful number, since it uses less digits than its factorization.

420696628 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9561302 (or 9561300 counting only the distinct ones).

The product of its (nonzero) digits is 248832, while the sum is 43.

The square root of 420696628 is about 20510.8904731121. The cubic root of 420696628 is about 749.3010543171.

The spelling of 420696628 in words is "four hundred twenty million, six hundred ninety-six thousand, six hundred twenty-eight".