420154052532 has 12 divisors (see below), whose sum is σ = 980359455936. Its totient is φ = 140051350840.

The previous prime is 420154052501. The next prime is 420154052557. The reversal of 420154052532 is 235250451024.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (12).

It is a super-2 number, since 2×420154052532² (a number of 24 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 420154052493 and 420154052502.

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, 17506418844 + ... + 17506418867.

It is an arithmetic number, because the mean of its divisors is an integer number (81696621328).

Almost surely, 2^420154052532 is an apocalyptic number.

It is an amenable number.

420154052532 is an abundant number, since it is smaller than the sum of its proper divisors (560205403404).

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

420154052532 is a wasteful number, since it uses less digits than its factorization.

420154052532 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 35012837718 (or 35012837716 counting only the distinct ones).

The product of its (nonzero) digits is 48000, while the sum is 33.

The spelling of 420154052532 in words is "four hundred twenty billion, one hundred fifty-four million, fifty-two thousand, five hundred thirty-two".