405974061 has 12 divisors (see below), whose sum is σ = 588412188. Its totient is φ = 269723904.

The previous prime is 405974033. The next prime is 405974069. The reversal of 405974061 is 160479504.

405974061 is a `hidden beast` number, since 4 + 0 + 597 + 4 + 0 + 61 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 395612100 + 10361961 = 19890^2 + 3219^2 .

It is not a de Polignac number, because 405974061 - 2⁵ = 405974029 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (405974069) 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 11 ways as a sum of consecutive naturals, for example, 74340 + ... + 79613.

It is an arithmetic number, because the mean of its divisors is an integer number (49034349).

Almost surely, 2^405974061 is an apocalyptic number.

It is an amenable number.

405974061 is a deficient number, since it is larger than the sum of its proper divisors (182438127).

405974061 is a wasteful number, since it uses less digits than its factorization.

405974061 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 154252 (or 154249 counting only the distinct ones).

The product of its (nonzero) digits is 30240, while the sum is 36.

The square root of 405974061 is about 20148.7980038512. The cubic root of 405974061 is about 740.4562933364.

The spelling of 405974061 in words is "four hundred five million, nine hundred seventy-four thousand, sixty-one".