1335690 has 80 divisors (see below), whose sum is σ = 3841992. Its totient is φ = 331776.

The previous prime is 1335689. The next prime is 1335743. The reversal of 1335690 is 965331.

It can be written as a sum of positive squares in 4 ways, for example, as 1185921 + 149769 = 1089^2 + 387^2 .

It is a super-2 number, since 2×1335690² = 3568135552200, which contains 22 as substring.

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

It is an Ulam number.

It is an unprimeable number.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 13722 + ... + 13818.

2^1335690 is an apocalyptic number.

1335690 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 1335690, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1920996).

1335690 is an abundant number, since it is smaller than the sum of its proper divisors (2506302).

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

1335690 is a wasteful number, since it uses less digits than its factorization.

1335690 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 133 (or 124 counting only the distinct ones).

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

The square root of 1335690 is about 1155.7205544594. The cubic root of 1335690 is about 110.1290496444.

It can be divided in two parts, 1335 and 690, that added together give a square (2025 = 45²).

The spelling of 1335690 in words is "one million, three hundred thirty-five thousand, six hundred ninety".