146351640 has 64 divisors (see below), whose sum is σ = 464888160. Its totient is φ = 36730880.

The previous prime is 146351629. The next prime is 146351663. The reversal of 146351640 is 46153641.

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

It is a junction number, because it is equal to n+sod(n) for n = 146351598 and 146351607.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 33831 + ... + 37910.

Almost surely, 2^146351640 is an apocalyptic number.

146351640 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

146351640 is an abundant number, since it is smaller than the sum of its proper divisors (318536520).

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

146351640 is a wasteful number, since it uses less digits than its factorization.

146351640 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 71772 (or 71768 counting only the distinct ones).

The product of its (nonzero) digits is 8640, while the sum is 30.

The square root of 146351640 is about 12097.5881893872. The cubic root of 146351640 is about 526.9861456030.

The spelling of 146351640 in words is "one hundred forty-six million, three hundred fifty-one thousand, six hundred forty".