420745259 has 8 divisors (see below), whose sum is σ = 459563760. Its totient is φ = 382021600.

The previous prime is 420745249. The next prime is 420745301. The reversal of 420745259 is 952547024.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 420745259 - 2²⁸ = 152309803 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (420745249) 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, 14264 + ... + 32325.

It is an arithmetic number, because the mean of its divisors is an integer number (57445470).

Almost surely, 2^420745259 is an apocalyptic number.

420745259 is a deficient number, since it is larger than the sum of its proper divisors (38818501).

420745259 is a wasteful number, since it uses less digits than its factorization.

420745259 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 47421.

The product of its (nonzero) digits is 100800, while the sum is 38.

The square root of 420745259 is about 20512.0759310217. The cubic root of 420745259 is about 749.3299253634.

It can be divided in two parts, 42074 and 5259, that multiplied together give a triangular number (221267166 = T₂₁₀₃₆).

The spelling of 420745259 in words is "four hundred twenty million, seven hundred forty-five thousand, two hundred fifty-nine".