146226840 has 32 divisors (see below), whose sum is σ = 438680880. Its totient is φ = 38993792.

The previous prime is 146226833. The next prime is 146226881. The reversal of 146226840 is 48622641.

It is a congruent number.

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, 609159 + ... + 609398.

Almost surely, 2^146226840 is an apocalyptic number.

146226840 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

146226840 is an abundant number, since it is smaller than the sum of its proper divisors (292454040).

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

146226840 is a wasteful number, since it uses less digits than its factorization.

146226840 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1218571 (or 1218567 counting only the distinct ones).

The product of its (nonzero) digits is 18432, while the sum is 33.

The square root of 146226840 is about 12092.4290363847. The cubic root of 146226840 is about 526.8363088260.

The spelling of 146226840 in words is "one hundred forty-six million, two hundred twenty-six thousand, eight hundred forty".