421960156 has 6 divisors (see below), whose sum is σ = 738430280. Its totient is φ = 210980076.

The previous prime is 421960129. The next prime is 421960157. The reversal of 421960156 is 651069124.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (421960157) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 52745016 + ... + 52745023.

Almost surely, 2^421960156 is an apocalyptic number.

It is an amenable number.

421960156 is a deficient number, since it is larger than the sum of its proper divisors (316470124).

421960156 is a wasteful number, since it uses less digits than its factorization.

421960156 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 105490043 (or 105490041 counting only the distinct ones).

The product of its (nonzero) digits is 12960, while the sum is 34.

The square root of 421960156 is about 20541.6687734955. The cubic root of 421960156 is about 750.0504594199.

The spelling of 421960156 in words is "four hundred twenty-one million, nine hundred sixty thousand, one hundred fifty-six".