420753459 has 16 divisors (see below), whose sum is σ = 642834432. Its totient is φ = 239798208.

The previous prime is 420753401. The next prime is 420753479. The reversal of 420753459 is 954357024.

It is not a de Polignac number, because 420753459 - 2¹² = 420749363 is a prime.

It is not an unprimeable number, because it can be changed into a prime (420753479) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 18114 + ... + 34199.

It is an arithmetic number, because the mean of its divisors is an integer number (40177152).

Almost surely, 2^420753459 is an apocalyptic number.

420753459 is a deficient number, since it is larger than the sum of its proper divisors (222080973).

420753459 is a wasteful number, since it uses less digits than its factorization.

420753459 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 52706.

The product of its (nonzero) digits is 151200, while the sum is 39.

The square root of 420753459 is about 20512.2758123032. The cubic root of 420753459 is about 749.3347932856.

The spelling of 420753459 in words is "four hundred twenty million, seven hundred fifty-three thousand, four hundred fifty-nine".