420141550 has 12 divisors (see below), whose sum is σ = 781463376. Its totient is φ = 168056600.

The previous prime is 420141541. The next prime is 420141551. The reversal of 420141550 is 55141024.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (420141551) 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, 4201366 + ... + 4201465.

It is an arithmetic number, because the mean of its divisors is an integer number (65121948).

Almost surely, 2^420141550 is an apocalyptic number.

420141550 is a deficient number, since it is larger than the sum of its proper divisors (361321826).

420141550 is a wasteful number, since it uses less digits than its factorization.

420141550 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8402843 (or 8402838 counting only the distinct ones).

The product of its (nonzero) digits is 800, while the sum is 22.

The square root of 420141550 is about 20497.3547073763. The cubic root of 420141550 is about 748.9713602156.

Adding to 420141550 its reverse (55141024), we get a palindrome (475282574).

The spelling of 420141550 in words is "four hundred twenty million, one hundred forty-one thousand, five hundred fifty".