420269551524 has 81 divisors (see below), whose sum is σ = 1073785855233. Its totient is φ = 138597505344.

The previous prime is 420269551441. The next prime is 420269551549. The reversal of 420269551524 is 425155962024.

The square root of 420269551524 is 648282.

It is a perfect power (a square), and thus also a powerful number.

420269551524 is a `hidden beast` number, since 4 + 2 + 0 + 26 + 95 + 515 + 24 = 666.

It can be written as a sum of positive squares in only one way, i.e., 381160533924 + 39109017600 = 617382^2 + 197760^2 .

It is a super-5 number, since 5×420269551524⁵ (a number of 59 digits) contains 55555 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 420269551524.

It is an unprimeable number.

It is a polite number, since it can be written in 26 ways as a sum of consecutive naturals, for example, 400637752 + ... + 400638800.

Almost surely, 2^420269551524 is an apocalyptic number.

420269551524 is the 648282-nd square number.

It is an amenable number.

420269551524 is an abundant number, since it is smaller than the sum of its proper divisors (653516303709).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

420269551524 is a wasteful number, since it uses less digits than its factorization.

420269551524 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2314 (or 1157 counting only the distinct ones).

The product of its (nonzero) digits is 864000, while the sum is 45.

The spelling of 420269551524 in words is "four hundred twenty billion, two hundred sixty-nine million, five hundred fifty-one thousand, five hundred twenty-four".