102426540 has 48 divisors (see below), whose sum is σ = 290031840. Its totient is φ = 27005440.

The previous prime is 102426523. The next prime is 102426563. The reversal of 102426540 is 45624201.

It is a self number, because there is not a number n which added to its sum of digits gives 102426540.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4251 + ... + 14930.

It is an arithmetic number, because the mean of its divisors is an integer number (6042330).

Almost surely, 2^102426540 is an apocalyptic number.

102426540 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

102426540 is an abundant number, since it is smaller than the sum of its proper divisors (187605300).

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

102426540 is a wasteful number, since it uses less digits than its factorization.

102426540 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19282 (or 19280 counting only the distinct ones).

The product of its (nonzero) digits is 1920, while the sum is 24.

The square root of 102426540 is about 10120.5997845977. The cubic root of 102426540 is about 467.8832530762.

The spelling of 102426540 in words is "one hundred two million, four hundred twenty-six thousand, five hundred forty".