146140640 has 96 divisors (see below), whose sum is σ = 356801760. Its totient is φ = 56541184.

The previous prime is 146140607. The next prime is 146140651. The reversal of 146140640 is 46041641.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1066652 + ... + 1066788.

It is an arithmetic number, because the mean of its divisors is an integer number (3716685).

Almost surely, 2^146140640 is an apocalyptic number.

146140640 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 146140640, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (178400880).

146140640 is an abundant number, since it is smaller than the sum of its proper divisors (210661120).

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

146140640 is a wasteful number, since it uses less digits than its factorization.

146140640 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 324 (or 316 counting only the distinct ones).

The product of its (nonzero) digits is 2304, while the sum is 26.

The square root of 146140640 is about 12088.8642973606. The cubic root of 146140640 is about 526.7327660100.

The spelling of 146140640 in words is "one hundred forty-six million, one hundred forty thousand, six hundred forty".