3730440 has 64 divisors (see below), whose sum is σ = 12792960. Its totient is φ = 852480.

The previous prime is 3730427. The next prime is 3730453. The reversal of 3730440 is 440373.

It is an interprime number because it is at equal distance from previous prime (3730427) and next prime (3730453).

It is a Harshad number since it is a multiple of its sum of digits (21).

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, 1381 + ... + 3060.

It is an arithmetic number, because the mean of its divisors is an integer number (199890).

Almost surely, 2^3730440 is an apocalyptic number.

3730440 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is an amenable number.

3730440 is an abundant number, since it is smaller than the sum of its proper divisors (9062520).

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

3730440 is a wasteful number, since it uses less digits than its factorization.

3730440 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4462 (or 4458 counting only the distinct ones).

The product of its (nonzero) digits is 1008, while the sum is 21.

The square root of 3730440 is about 1931.4346999057. The cubic root of 3730440 is about 155.0910322006.

The spelling of 3730440 in words is "three million, seven hundred thirty thousand, four hundred forty".