102646340 has 24 divisors (see below), whose sum is σ = 228237912. Its totient is φ = 38643200.

The previous prime is 102646337. The next prime is 102646343. The reversal of 102646340 is 43646201.

It is an interprime number because it is at equal distance from previous prime (102646337) and next prime (102646343).

It can be written as a sum of positive squares in 4 ways, for example, as 17859076 + 84787264 = 4226^2 + 9208^2 .

It is a super-2 number, since 2×102646340² = 21072542230791200, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (102646343) 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, 150611 + ... + 151290.

It is an arithmetic number, because the mean of its divisors is an integer number (9509913).

Almost surely, 2^102646340 is an apocalyptic number.

102646340 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

102646340 is an abundant number, since it is smaller than the sum of its proper divisors (125591572).

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

102646340 is a wasteful number, since it uses less digits than its factorization.

102646340 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 301927 (or 301925 counting only the distinct ones).

The product of its (nonzero) digits is 3456, while the sum is 26.

The square root of 102646340 is about 10131.4530053690. The cubic root of 102646340 is about 468.2176952486.

The spelling of 102646340 in words is "one hundred two million, six hundred forty-six thousand, three hundred forty".