420739659 has 6 divisors (see below), whose sum is σ = 607735076. Its totient is φ = 280493100.

The previous prime is 420739651. The next prime is 420739721. The reversal of 420739659 is 956937024.

It is a happy number.

420739659 is a `hidden beast` number, since 4 + 207 + 396 + 59 = 666.

It is not a de Polignac number, because 420739659 - 2³ = 420739651 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (420739651) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 23374417 + ... + 23374434.

Almost surely, 2^420739659 is an apocalyptic number.

420739659 is a deficient number, since it is larger than the sum of its proper divisors (186995417).

420739659 is a wasteful number, since it uses less digits than its factorization.

420739659 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 46748857 (or 46748854 counting only the distinct ones).

The product of its (nonzero) digits is 408240, while the sum is 45.

The square root of 420739659 is about 20511.9394256126. The cubic root of 420739659 is about 749.3266008925.

The spelling of 420739659 in words is "four hundred twenty million, seven hundred thirty-nine thousand, six hundred fifty-nine".