420937340 has 24 divisors (see below), whose sum is σ = 935967312. Its totient is φ = 158470400.

The previous prime is 420937331. The next prime is 420937351. The reversal of 420937340 is 43739024.

It is a junction number, because it is equal to n+sod(n) for n = 420937297 and 420937306.

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, 618686 + ... + 619365.

It is an arithmetic number, because the mean of its divisors is an integer number (38998638).

Almost surely, 2^420937340 is an apocalyptic number.

It is an amenable number.

420937340 is an abundant number, since it is smaller than the sum of its proper divisors (515029972).

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

420937340 is a wasteful number, since it uses less digits than its factorization.

420937340 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1238077 (or 1238075 counting only the distinct ones).

The product of its (nonzero) digits is 18144, while the sum is 32.

The square root of 420937340 is about 20516.7575410931. The cubic root of 420937340 is about 749.4439374575.

The spelling of 420937340 in words is "four hundred twenty million, nine hundred thirty-seven thousand, three hundred forty".