366400642 has 8 divisors (see below), whose sum is σ = 551585916. Its totient is φ = 182538672.

The previous prime is 366400633. The next prime is 366400663. The reversal of 366400642 is 246004663.

It can be written as a sum of positive squares in 2 ways, for example, as 320445801 + 45954841 = 17901^2 + 6779^2 .

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, 330133 + ... + 331240.

Almost surely, 2^366400642 is an apocalyptic number.

366400642 is a deficient number, since it is larger than the sum of its proper divisors (185185274).

366400642 is a wasteful number, since it uses less digits than its factorization.

366400642 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 661652.

The product of its (nonzero) digits is 20736, while the sum is 31.

The square root of 366400642 is about 19141.5945521788. The cubic root of 366400642 is about 715.5699187267.

The spelling of 366400642 in words is "three hundred sixty-six million, four hundred thousand, six hundred forty-two".