102790340 has 12 divisors (see below), whose sum is σ = 215859756. Its totient is φ = 41116128.

The previous prime is 102790319. The next prime is 102790343. The reversal of 102790340 is 43097201.

It can be written as a sum of positive squares in 2 ways, for example, as 79673476 + 23116864 = 8926^2 + 4808^2 .

It is not an unprimeable number, because it can be changed into a prime (102790343) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2569739 + ... + 2569778.

It is an arithmetic number, because the mean of its divisors is an integer number (17988313).

Almost surely, 2^102790340 is an apocalyptic number.

102790340 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

102790340 is an abundant number, since it is smaller than the sum of its proper divisors (113069416).

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

102790340 is a wasteful number, since it uses less digits than its factorization.

102790340 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5139526 (or 5139524 counting only the distinct ones).

The product of its (nonzero) digits is 1512, while the sum is 26.

The square root of 102790340 is about 10138.5570965498. The cubic root of 102790340 is about 468.4365432654.

The spelling of 102790340 in words is "one hundred two million, seven hundred ninety thousand, three hundred forty".