7400385 has 24 divisors (see below), whose sum is σ = 13104000. Its totient is φ = 3861792.

The previous prime is 7400381. The next prime is 7400399. The reversal of 7400385 is 5830047.

It is not a de Polignac number, because 7400385 - 2² = 7400381 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (7400381) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 366 + ... + 3864.

It is an arithmetic number, because the mean of its divisors is an integer number (546000).

Almost surely, 2^7400385 is an apocalyptic number.

It is an amenable number.

7400385 is a deficient number, since it is larger than the sum of its proper divisors (5703615).

7400385 is a wasteful number, since it uses less digits than its factorization.

7400385 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3557 (or 3554 counting only the distinct ones).

The product of its (nonzero) digits is 3360, while the sum is 27.

The square root of 7400385 is about 2720.3648652341. The cubic root of 7400385 is about 194.8728954727.

It can be divided in two parts, 74003 and 85, that added together give a cube (74088 = 42³).

The spelling of 7400385 in words is "seven million, four hundred thousand, three hundred eighty-five".