10455640 has 32 divisors (see below), whose sum is σ = 25336080. Its totient is φ = 3860352.

The previous prime is 10455637. The next prime is 10455647. The reversal of 10455640 is 4655401.

10455640 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Smith number, since the sum of its digits (25) coincides with the sum of the digits of its prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10455647) 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, 9534 + ... + 10573.

Almost surely, 2^10455640 is an apocalyptic number.

10455640 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

10455640 is an abundant number, since it is smaller than the sum of its proper divisors (14880440).

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

10455640 is a wasteful number, since it uses less digits than its factorization.

10455640 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20131 (or 20127 counting only the distinct ones).

The product of its (nonzero) digits is 2400, while the sum is 25.

The square root of 10455640 is about 3233.5182077731. The cubic root of 10455640 is about 218.6671479433.

The spelling of 10455640 in words is "ten million, four hundred fifty-five thousand, six hundred forty".