420941240 has 16 divisors (see below), whose sum is σ = 947117880. Its totient is φ = 168376480.

The previous prime is 420941237. The next prime is 420941249. The reversal of 420941240 is 42149024.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (420941249) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5261726 + ... + 5261805.

Almost surely, 2^420941240 is an apocalyptic number.

420941240 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

420941240 is an abundant number, since it is smaller than the sum of its proper divisors (526176640).

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

420941240 is a wasteful number, since it uses less digits than its factorization.

420941240 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10523542 (or 10523538 counting only the distinct ones).

The product of its (nonzero) digits is 2304, while the sum is 26.

The square root of 420941240 is about 20516.8525851311. The cubic root of 420941240 is about 749.4462519922.

It can be divided in two parts, 42094 and 1240, that added together give a palindrome (43334).

The spelling of 420941240 in words is "four hundred twenty million, nine hundred forty-one thousand, two hundred forty".