9742490 has 8 divisors (see below), whose sum is σ = 17536500. Its totient is φ = 3896992.

The previous prime is 9742483. The next prime is 9742511. The reversal of 9742490 is 942479.

It can be written as a sum of positive squares in 2 ways, for example, as 9740641 + 1849 = 3121^2 + 43^2 .

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

It is a super-2 number, since 2×9742490² = 189832222800200, which contains 22 as substring.

It is an Ulam number.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 9742490.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 487115 + ... + 487134.

Almost surely, 2^9742490 is an apocalyptic number.

9742490 is a deficient number, since it is larger than the sum of its proper divisors (7794010).

9742490 is a wasteful number, since it uses less digits than its factorization.

9742490 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 974256.

The product of its (nonzero) digits is 18144, while the sum is 35.

The square root of 9742490 is about 3121.2962051045. The cubic root of 9742490 is about 213.5780692835.

The spelling of 9742490 in words is "nine million, seven hundred forty-two thousand, four hundred ninety".