167978448 has 100 divisors (see below), whose sum is σ = 530421408. Its totient is φ = 50898240.

The previous prime is 167978443. The next prime is 167978501. The reversal of 167978448 is 844879761.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is a junction number, because it is equal to n+sod(n) for n = 167978394 and 167978403.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (167978443) by changing a digit.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 8365 + ... + 20147.

Almost surely, 2^167978448 is an apocalyptic number.

167978448 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 167978448, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (265210704).

167978448 is an abundant number, since it is smaller than the sum of its proper divisors (362442960).

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

167978448 is a wasteful number, since it uses less digits than its factorization.

167978448 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11814 (or 11799 counting only the distinct ones).

The product of its digits is 2709504, while the sum is 54.

The square root of 167978448 is about 12960.6499837007. The cubic root of 167978448 is about 551.7612388966.

The spelling of 167978448 in words is "one hundred sixty-seven million, nine hundred seventy-eight thousand, four hundred forty-eight".