9440290 has 8 divisors (see below), whose sum is σ = 16992540. Its totient is φ = 3776112.

The previous prime is 9440273. The next prime is 9440293. The reversal of 9440290 is 920449.

It can be written as a sum of positive squares in 2 ways, for example, as 8946081 + 494209 = 2991^2 + 703^2 .

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

It is not an unprimeable number, because it can be changed into a prime (9440293) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 472005 + ... + 472024.

Almost surely, 2^9440290 is an apocalyptic number.

9440290 is a deficient number, since it is larger than the sum of its proper divisors (7552250).

9440290 is a wasteful number, since it uses less digits than its factorization.

9440290 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 944036.

The product of its (nonzero) digits is 2592, while the sum is 28.

The square root of 9440290 is about 3072.5054922652. The cubic root of 9440290 is about 211.3465252197.

It can be divided in two parts, 9440 and 290, that added together give a triangular number (9730 = T₁₃₉).

The spelling of 9440290 in words is "nine million, four hundred forty thousand, two hundred ninety".