146749806 has 160 divisors (see below), whose sum is σ = 406560000. Its totient is φ = 39435984.

The previous prime is 146749789. The next prime is 146749817. The reversal of 146749806 is 608947641.

It is a super-2 number, since 2×146749806² = 43071011122075272, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 79 ways as a sum of consecutive naturals, for example, 1055685 + ... + 1055823.

It is an arithmetic number, because the mean of its divisors is an integer number (2541000).

Almost surely, 2^146749806 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 146749806, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (203280000).

146749806 is an abundant number, since it is smaller than the sum of its proper divisors (259810194).

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

146749806 is a wasteful number, since it uses less digits than its factorization.

146749806 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 193 (or 170 counting only the distinct ones).

The product of its (nonzero) digits is 290304, while the sum is 45.

The square root of 146749806 is about 12114.0334323461. The cubic root of 146749806 is about 527.4636210995.

The spelling of 146749806 in words is "one hundred forty-six million, seven hundred forty-nine thousand, eight hundred six".