740406506 has 8 divisors (see below), whose sum is σ = 1269268320. Its totient is φ = 317317068.

The previous prime is 740406487. The next prime is 740406523. The reversal of 740406506 is 605604047.

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

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, 26443076 + ... + 26443103.

It is an arithmetic number, because the mean of its divisors is an integer number (158658540).

Almost surely, 2^740406506 is an apocalyptic number.

740406506 is a deficient number, since it is larger than the sum of its proper divisors (528861814).

740406506 is a wasteful number, since it uses less digits than its factorization.

740406506 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 52886188.

The product of its (nonzero) digits is 20160, while the sum is 32.

The square root of 740406506 is about 27210.4117205161. The cubic root of 740406506 is about 904.6697638245.

The spelling of 740406506 in words is "seven hundred forty million, four hundred six thousand, five hundred six".