420157126 has 32 divisors (see below), whose sum is σ = 661236480. Its totient is φ = 200037600.

The previous prime is 420157103. The next prime is 420157139. The reversal of 420157126 is 621751024.

It is a junction number, because it is equal to n+sod(n) for n = 420157094 and 420157103.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1108405 + ... + 1108783.

It is an arithmetic number, because the mean of its divisors is an integer number (20663640).

Almost surely, 2^420157126 is an apocalyptic number.

420157126 is a deficient number, since it is larger than the sum of its proper divisors (241079354).

420157126 is a wasteful number, since it uses less digits than its factorization.

420157126 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 700.

The product of its (nonzero) digits is 3360, while the sum is 28.

The square root of 420157126 is about 20497.7346553223. The cubic root of 420157126 is about 748.9806156945.

It can be divided in two parts, 42015 and 7126, that added together give a triangular number (49141 = T₃₁₃).

The spelling of 420157126 in words is "four hundred twenty million, one hundred fifty-seven thousand, one hundred twenty-six".