7400990 has 8 divisors (see below), whose sum is σ = 13321800. Its totient is φ = 2960392.

The previous prime is 7400989. The next prime is 7400993. The reversal of 7400990 is 990047.

It is a sphenic number, since it is the product of 3 distinct primes.

7400990 is a modest number, since divided by 990 gives 740 as remainder.

It is a nialpdrome in base 14.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (7400993) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 370040 + ... + 370059.

It is an arithmetic number, because the mean of its divisors is an integer number (1665225).

Almost surely, 2^7400990 is an apocalyptic number.

7400990 is a deficient number, since it is larger than the sum of its proper divisors (5920810).

7400990 is a wasteful number, since it uses less digits than its factorization.

7400990 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 740106.

The product of its (nonzero) digits is 2268, while the sum is 29.

The square root of 7400990 is about 2720.4760612805. The cubic root of 7400990 is about 194.8782057770.

The spelling of 7400990 in words is "seven million, four hundred thousand, nine hundred ninety".