420212902 has 16 divisors (see below), whose sum is σ = 670179312. Its totient is φ = 196922880.

The previous prime is 420212867. The next prime is 420212951. The reversal of 420212902 is 209212024.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 17448 + ... + 33835.

It is an arithmetic number, because the mean of its divisors is an integer number (41886207).

Almost surely, 2^420212902 is an apocalyptic number.

420212902 is a deficient number, since it is larger than the sum of its proper divisors (249966410).

420212902 is a wasteful number, since it uses less digits than its factorization.

420212902 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 51543.

The product of its (nonzero) digits is 576, while the sum is 22.

The square root of 420212902 is about 20499.0951507621. The cubic root of 420212902 is about 749.0137567044.

Adding to 420212902 its reverse (209212024), we get a palindrome (629424926).

The spelling of 420212902 in words is "four hundred twenty million, two hundred twelve thousand, nine hundred two".