420261900 has 36 divisors (see below), whose sum is σ = 1215958632. Its totient is φ = 112069760.

The previous prime is 420261883. The next prime is 420261901. The reversal of 420261900 is 9162024.

It is a super-2 number, since 2×420261900² = 353240129183220000, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (420261901) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 700137 + ... + 700736.

Almost surely, 2^420261900 is an apocalyptic number.

It is an amenable number.

420261900 is an abundant number, since it is smaller than the sum of its proper divisors (795696732).

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

420261900 is a wasteful number, since it uses less digits than its factorization.

420261900 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1400890 (or 1400883 counting only the distinct ones).

The product of its (nonzero) digits is 864, while the sum is 24.

The square root of 420261900 is about 20500.2902418478. The cubic root of 420261900 is about 749.0428679395.

The spelling of 420261900 in words is "four hundred twenty million, two hundred sixty-one thousand, nine hundred".