84149400 has 48 divisors (see below), whose sum is σ = 260865000. Its totient is φ = 22439680.

The previous prime is 84149393. The next prime is 84149419. The reversal of 84149400 is 494148.

It is a super-2 number, since 2×84149400² = 14162243040720000, which contains 22 as substring.

It is a hoax number, since the sum of its digits (30) coincides with the sum of the digits of its distinct prime factors.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 69525 + ... + 70724.

Almost surely, 2^84149400 is an apocalyptic number.

It is an amenable number.

84149400 is an abundant number, since it is smaller than the sum of its proper divisors (176715600).

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

84149400 is a wasteful number, since it uses less digits than its factorization.

84149400 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 140268 (or 140259 counting only the distinct ones).

The product of its (nonzero) digits is 4608, while the sum is 30.

The square root of 84149400 is about 9173.2982072971. The cubic root of 84149400 is about 438.2114031300.

The spelling of 84149400 in words is "eighty-four million, one hundred forty-nine thousand, four hundred".