102756406 has 32 divisors (see below), whose sum is σ = 161971200. Its totient is φ = 48859200.

The previous prime is 102756403. The next prime is 102756431. The reversal of 102756406 is 604657201.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (102756403) 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, 680431 + ... + 680581.

It is an arithmetic number, because the mean of its divisors is an integer number (5061600).

Almost surely, 2^102756406 is an apocalyptic number.

102756406 is a deficient number, since it is larger than the sum of its proper divisors (59214794).

102756406 is a wasteful number, since it uses less digits than its factorization.

102756406 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 364.

The product of its (nonzero) digits is 10080, while the sum is 31.

The square root of 102756406 is about 10136.8834461091. The cubic root of 102756406 is about 468.3849895390.

The spelling of 102756406 in words is "one hundred two million, seven hundred fifty-six thousand, four hundred six".