1345740 has 48 divisors (see below), whose sum is σ = 4112640. Its totient is φ = 326080.

The previous prime is 1345733. The next prime is 1345759. The reversal of 1345740 is 475431.

1345740 = T₂₂₅ + T₂₂₆ + ... + T₂₆₈.

It is a super-2 number, since 2×1345740² = 3622032295200, which contains 22 as substring.

It is a plaindrome in base 16.

It is a self number, because there is not a number n which added to its sum of digits gives 1345740.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 360 + ... + 1679.

It is an arithmetic number, because the mean of its divisors is an integer number (85680).

2^1345740 is an apocalyptic number.

1345740 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1345740 is an abundant number, since it is smaller than the sum of its proper divisors (2766900).

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

1345740 is a wasteful number, since it uses less digits than its factorization.

1345740 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2062 (or 2060 counting only the distinct ones).

The product of its (nonzero) digits is 1680, while the sum is 24.

The square root of 1345740 is about 1160.0603432581. The cubic root of 1345740 is about 110.4045708042.

It can be divided in two parts, 13 and 45740, that added together give a triangular number (45753 = T₃₀₂).

The spelling of 1345740 in words is "one million, three hundred forty-five thousand, seven hundred forty".