33400946394 has 24 divisors (see below), whose sum is σ = 72372342900. Its totient is φ = 11133091008.

The previous prime is 33400946321. The next prime is 33400946419. The reversal of 33400946394 is 49364900433.

33400946394 is a `hidden beast` number, since 3 + 3 + 4 + 0 + 0 + 9 + 4 + 639 + 4 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 33286178025 + 114768369 = 182445^2 + 10713^2 .

It is a super-2 number, since 2×33400946394² (a number of 22 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 490332 + ... + 554280.

Almost surely, 2^33400946394 is an apocalyptic number.

33400946394 is an abundant number, since it is smaller than the sum of its proper divisors (38971396506).

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

33400946394 is a wasteful number, since it uses less digits than its factorization.

33400946394 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 92974 (or 92971 counting only the distinct ones).

The product of its (nonzero) digits is 839808, while the sum is 45.

The spelling of 33400946394 in words is "thirty-three billion, four hundred million, nine hundred forty-six thousand, three hundred ninety-four".