420436372 has 12 divisors (see below), whose sum is σ = 738843840. Its totient is φ = 209338136.

The previous prime is 420436349. The next prime is 420436381. The reversal of 420436372 is 273634024.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 218938 + ... + 220849.

It is an arithmetic number, because the mean of its divisors is an integer number (61570320).

Almost surely, 2^420436372 is an apocalyptic number.

It is an amenable number.

420436372 is a deficient number, since it is larger than the sum of its proper divisors (318407468).

420436372 is a wasteful number, since it uses less digits than its factorization.

420436372 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 440030 (or 440028 counting only the distinct ones).

The product of its (nonzero) digits is 24192, while the sum is 31.

The square root of 420436372 is about 20504.5451546724. The cubic root of 420436372 is about 749.1465088092.

The spelling of 420436372 in words is "four hundred twenty million, four hundred thirty-six thousand, three hundred seventy-two".