3749640 has 32 divisors (see below), whose sum is σ = 11249280. Its totient is φ = 999872.

The previous prime is 3749633. The next prime is 3749653. The reversal of 3749640 is 469473.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 15504 + ... + 15743.

It is an arithmetic number, because the mean of its divisors is an integer number (351540).

Almost surely, 2^3749640 is an apocalyptic number.

3749640 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is an amenable number.

3749640 is an abundant number, since it is smaller than the sum of its proper divisors (7499640).

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

3749640 is a wasteful number, since it uses less digits than its factorization.

3749640 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 31261 (or 31257 counting only the distinct ones).

The product of its (nonzero) digits is 18144, while the sum is 33.

The square root of 3749640 is about 1936.3987192725. The cubic root of 3749640 is about 155.3566535666.

The spelling of 3749640 in words is "three million, seven hundred forty-nine thousand, six hundred forty".