78337338 has 16 divisors (see below), whose sum is σ = 159013920. Its totient is φ = 25722576.

The previous prime is 78337321. The next prime is 78337393. The reversal of 78337338 is 83373387.

It is a happy number.

It is a super-2 number, since 2×78337338² = 12273477049852488, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 78337338.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 97033 + ... + 97836.

It is an arithmetic number, because the mean of its divisors is an integer number (9938370).

Almost surely, 2^78337338 is an apocalyptic number.

78337338 is an abundant number, since it is smaller than the sum of its proper divisors (80676582).

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

78337338 is a wasteful number, since it uses less digits than its factorization.

78337338 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 194941.

The product of its digits is 254016, while the sum is 42.

The square root of 78337338 is about 8850.8382653848. The cubic root of 78337338 is about 427.8809353787.

The spelling of 78337338 in words is "seventy-eight million, three hundred thirty-seven thousand, three hundred thirty-eight".