1353690 has 72 divisors (see below), whose sum is σ = 3853980. Its totient is φ = 329472.

The previous prime is 1353689. The next prime is 1353701. The reversal of 1353690 is 963531.

It can be written as a sum of positive squares in 6 ways, for example, as 33489 + 1320201 = 183^2 + 1149^2 .

It is a super-2 number, since 2×1353690² = 3664953232200, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 15166 + ... + 15254.

2^1353690 is an apocalyptic number.

1353690 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 1353690, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1926990).

1353690 is an abundant number, since it is smaller than the sum of its proper divisors (2500290).

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

1353690 is a wasteful number, since it uses less digits than its factorization.

1353690 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 128 (or 112 counting only the distinct ones).

The product of its (nonzero) digits is 2430, while the sum is 27.

The square root of 1353690 is about 1163.4818434338. The cubic root of 1353690 is about 110.6215502132.

The spelling of 1353690 in words is "one million, three hundred fifty-three thousand, six hundred ninety".