103290390 has 80 divisors (see below), whose sum is σ = 317430432. Its totient is φ = 23607936.

The previous prime is 103290371. The next prime is 103290391. The reversal of 103290390 is 93092301.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (103290391) by changing a digit.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 3439 + ... + 14778.

Almost surely, 2^103290390 is an apocalyptic number.

103290390 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

103290390 is an abundant number, since it is smaller than the sum of its proper divisors (214140042).

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

103290390 is a wasteful number, since it uses less digits than its factorization.

103290390 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18243 (or 18234 counting only the distinct ones).

The product of its (nonzero) digits is 1458, while the sum is 27.

The square root of 103290390 is about 10163.1879840924. The cubic root of 103290390 is about 469.1949247559.

The spelling of 103290390 in words is "one hundred three million, two hundred ninety thousand, three hundred ninety".