7400890 has 16 divisors (see below), whose sum is σ = 15224832. Its totient is φ = 2537424.

The previous prime is 7400879. The next prime is 7400891. The reversal of 7400890 is 980047.

It is not an unprimeable number, because it can be changed into a prime (7400891) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 52794 + ... + 52933.

It is an arithmetic number, because the mean of its divisors is an integer number (951552).

Almost surely, 2^7400890 is an apocalyptic number.

7400890 is a gapful number since it is divisible by the number (70) formed by its first and last digit.

7400890 is an abundant number, since it is smaller than the sum of its proper divisors (7823942).

7400890 is a wasteful number, since it uses less digits than its factorization.

7400890 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 105741.

The product of its (nonzero) digits is 2016, while the sum is 28.

The square root of 7400890 is about 2720.4576820822. The cubic root of 7400890 is about 194.8773280607.

The spelling of 7400890 in words is "seven million, four hundred thousand, eight hundred ninety".