405476746 has 8 divisors (see below), whose sum is σ = 615543264. Its totient is φ = 200295660.

The previous prime is 405476723. The next prime is 405476749. The reversal of 405476746 is 647674504.

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

It is a super-2 number, since 2×405476746² = 328822783093497032, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (405476749) 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, 1221150 + ... + 1221481.

It is an arithmetic number, because the mean of its divisors is an integer number (76942908).

Almost surely, 2^405476746 is an apocalyptic number.

405476746 is a deficient number, since it is larger than the sum of its proper divisors (210066518).

405476746 is a wasteful number, since it uses less digits than its factorization.

405476746 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2442716.

The product of its (nonzero) digits is 564480, while the sum is 43.

The square root of 405476746 is about 20136.4531633553. The cubic root of 405476746 is about 740.1538187672.

The spelling of 405476746 in words is "four hundred five million, four hundred seventy-six thousand, seven hundred forty-six".