420354036 has 72 divisors (see below), whose sum is σ = 1166780160. Its totient is φ = 131870592.

The previous prime is 420354013. The next prime is 420354037. The reversal of 420354036 is 630453024.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (420354037) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 3805 + ... + 29243.

It is an arithmetic number, because the mean of its divisors is an integer number (16205280).

Almost surely, 2^420354036 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 420354036, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (583390080).

420354036 is an abundant number, since it is smaller than the sum of its proper divisors (746426124).

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

420354036 is a wasteful number, since it uses less digits than its factorization.

420354036 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25475 (or 25461 counting only the distinct ones).

The product of its (nonzero) digits is 8640, while the sum is 27.

The square root of 420354036 is about 20502.5373063921. The cubic root of 420354036 is about 749.0976026742.

The spelling of 420354036 in words is "four hundred twenty million, three hundred fifty-four thousand, thirty-six".