662406240 has 48 divisors (see below), whose sum is σ = 2086581168. Its totient is φ = 176641536.

The previous prime is 662406223. The next prime is 662406247. The reversal of 662406240 is 42604266.

It is a tau number, because it is divible by the number of its divisors (48).

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a junction number, because it is equal to n+sod(n) for n = 662406198 and 662406207.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (662406247) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 689527 + ... + 690486.

It is an arithmetic number, because the mean of its divisors is an integer number (43470441).

Almost surely, 2^662406240 is an apocalyptic number.

662406240 is a gapful number since it is divisible by the number (60) formed by its first and last digit.

It is an amenable number.

662406240 is an abundant number, since it is smaller than the sum of its proper divisors (1424174928).

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

662406240 is a wasteful number, since it uses less digits than its factorization.

662406240 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1380031 (or 1380023 counting only the distinct ones).

The product of its (nonzero) digits is 13824, while the sum is 30.

The square root of 662406240 is about 25737.2539327722. The cubic root of 662406240 is about 871.7155737071.

The spelling of 662406240 in words is "six hundred sixty-two million, four hundred six thousand, two hundred forty".