1107990 has 48 divisors (see below), whose sum is σ = 3105648. Its totient is φ = 272448.

The previous prime is 1107989. The next prime is 1108001. The reversal of 1107990 is 997011.

1107990 is nontrivially palindromic in base 14.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 697 + ... + 1643.

It is an arithmetic number, because the mean of its divisors is an integer number (64701).

2^1107990 is an apocalyptic number.

1107990 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 1107990, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1552824).

1107990 is an abundant number, since it is smaller than the sum of its proper divisors (1997658).

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

1107990 is a wasteful number, since it uses less digits than its factorization.

1107990 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 973 (or 970 counting only the distinct ones).

The product of its (nonzero) digits is 567, while the sum is 27.

The square root of 1107990 is about 1052.6110392733. The cubic root of 1107990 is about 103.4773457384.

It can be divided in two parts, 110 and 7990, that added together give a square (8100 = 90²).

The spelling of 1107990 in words is "one million, one hundred seven thousand, nine hundred ninety".