102662040 has 64 divisors (see below), whose sum is σ = 331682400. Its totient is φ = 25270272.

The previous prime is 102662029. The next prime is 102662047. The reversal of 102662040 is 40266201.

It is a happy number.

It is a zygodrome in base 2.

It is a junction number, because it is equal to n+sod(n) for n = 102661998 and 102662016.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (102662047) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 31345 + ... + 34464.

Almost surely, 2^102662040 is an apocalyptic number.

102662040 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

102662040 is an abundant number, since it is smaller than the sum of its proper divisors (229020360).

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

102662040 is a wasteful number, since it uses less digits than its factorization.

102662040 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 65836 (or 65832 counting only the distinct ones).

The product of its (nonzero) digits is 576, while the sum is 21.

The square root of 102662040 is about 10132.2277905700. The cubic root of 102662040 is about 468.2415656989.

The spelling of 102662040 in words is "one hundred two million, six hundred sixty-two thousand, forty".