240620478 has 48 divisors (see below), whose sum is σ = 569030544. Its totient is φ = 67616640.

The previous prime is 240620461. The next prime is 240620519. The reversal of 240620478 is 874026042.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 11226 + ... + 24642.

It is an arithmetic number, because the mean of its divisors is an integer number (11854803).

Almost surely, 2^240620478 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 240620478, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (284515272).

240620478 is an abundant number, since it is smaller than the sum of its proper divisors (328410066).

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

240620478 is a wasteful number, since it uses less digits than its factorization.

240620478 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13497 (or 13490 counting only the distinct ones).

The product of its (nonzero) digits is 21504, while the sum is 33.

The square root of 240620478 is about 15511.9462995460. The cubic root of 240620478 is about 621.9815873900.

The spelling of 240620478 in words is "two hundred forty million, six hundred twenty thousand, four hundred seventy-eight".