369969978 has 32 divisors (see below), whose sum is σ = 866275200. Its totient is φ = 103127040.

The previous prime is 369969967. The next prime is 369969991. The reversal of 369969978 is 879969963.

It is a super-3 number, since 3×369969978³ (a number of 27 digits) contains 333 as substring.

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 105703 + ... + 109146.

It is an arithmetic number, because the mean of its divisors is an integer number (27071100).

Almost surely, 2^369969978 is an apocalyptic number.

369969978 is an abundant number, since it is smaller than the sum of its proper divisors (496305222).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

369969978 is a wasteful number, since it uses less digits than its factorization.

369969978 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 214902.

The product of its digits is 39680928, while the sum is 66.

The square root of 369969978 is about 19234.6036611104. The cubic root of 369969978 is about 717.8860176033.

The spelling of 369969978 in words is "three hundred sixty-nine million, nine hundred sixty-nine thousand, nine hundred seventy-eight".