420629131 has 8 divisors (see below), whose sum is σ = 453154464. Its totient is φ = 388128000.

The previous prime is 420629071. The next prime is 420629159. The reversal of 420629131 is 131926024.

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

It is not a de Polignac number, because 420629131 - 2¹³ = 420620939 is a prime.

It is a super-2 number, since 2×420629131² = 353857731691630322, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 420629131.

It is not an unprimeable number, because it can be changed into a prime (420629191) 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, 47970 + ... + 56056.

It is an arithmetic number, because the mean of its divisors is an integer number (56644308).

Almost surely, 2^420629131 is an apocalyptic number.

420629131 is a deficient number, since it is larger than the sum of its proper divisors (32525333).

420629131 is a wasteful number, since it uses less digits than its factorization.

420629131 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12101.

The product of its (nonzero) digits is 2592, while the sum is 28.

The square root of 420629131 is about 20509.2450129204. The cubic root of 420629131 is about 749.2609792963.

The spelling of 420629131 in words is "four hundred twenty million, six hundred twenty-nine thousand, one hundred thirty-one".