368778290 has 8 divisors (see below), whose sum is σ = 663800940. Its totient is φ = 147511312.

The previous prime is 368778281. The next prime is 368778307. The reversal of 368778290 is 92877863.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 336025561 + 32752729 = 18331^2 + 5723^2 .

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, 18438905 + ... + 18438924.

Almost surely, 2^368778290 is an apocalyptic number.

368778290 is a deficient number, since it is larger than the sum of its proper divisors (295022650).

368778290 is a wasteful number, since it uses less digits than its factorization.

368778290 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 36877836.

The product of its (nonzero) digits is 1016064, while the sum is 50.

The square root of 368778290 is about 19203.6009644025. The cubic root of 368778290 is about 717.1144087524.

The spelling of 368778290 in words is "three hundred sixty-eight million, seven hundred seventy-eight thousand, two hundred ninety".