6742490 has 8 divisors (see below), whose sum is σ = 12136500. Its totient is φ = 2696992.

The previous prime is 6742481. The next prime is 6742493. The reversal of 6742490 is 942476.

It can be written as a sum of positive squares in 2 ways, for example, as 6265009 + 477481 = 2503^2 + 691^2 .

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

It is a super-2 number, since 2×6742490² = 90922342800200, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (6742493) 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, 337115 + ... + 337134.

Almost surely, 2^6742490 is an apocalyptic number.

6742490 is a deficient number, since it is larger than the sum of its proper divisors (5394010).

6742490 is a wasteful number, since it uses less digits than its factorization.

6742490 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 674256.

The product of its (nonzero) digits is 12096, while the sum is 32.

The square root of 6742490 is about 2596.6305089481. The cubic root of 6742490 is about 188.9180425333.

The spelling of 6742490 in words is "six million, seven hundred forty-two thousand, four hundred ninety".