167494428 has 18 divisors (see below), whose sum is σ = 423388784. Its totient is φ = 55831464.

The previous prime is 167494423. The next prime is 167494433. The reversal of 167494428 is 824494761.

167494428 is a `hidden beast` number, since 167 + 49 + 442 + 8 = 666.

It is an interprime number because it is at equal distance from previous prime (167494423) and next prime (167494433).

It is a tau number, because it is divible by the number of its divisors (18).

It is a super-2 number, since 2×167494428² = 56108766822094368, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (167494423) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 2326276 + ... + 2326347.

Almost surely, 2^167494428 is an apocalyptic number.

167494428 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

It is an amenable number.

167494428 is an abundant number, since it is smaller than the sum of its proper divisors (255894356).

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

167494428 is a wasteful number, since it uses less digits than its factorization.

167494428 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4652633 (or 4652628 counting only the distinct ones).

The product of its digits is 387072, while the sum is 45.

The square root of 167494428 is about 12941.9638386143. The cubic root of 167494428 is about 551.2307732353.

The spelling of 167494428 in words is "one hundred sixty-seven million, four hundred ninety-four thousand, four hundred twenty-eight".