140650320 has 160 divisors (see below), whose sum is σ = 458684928. Its totient is φ = 35610624.

The previous prime is 140650297. The next prime is 140650343. The reversal of 140650320 is 23056041.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (140650297) and next prime (140650343).

It is a super-2 number, since 2×140650320² = 39565025032204800, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 417192 + ... + 417528.

Almost surely, 2^140650320 is an apocalyptic number.

140650320 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 140650320, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (229342464).

140650320 is an abundant number, since it is smaller than the sum of its proper divisors (318034608).

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

140650320 is a wasteful number, since it uses less digits than its factorization.

140650320 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 437 (or 431 counting only the distinct ones).

The product of its (nonzero) digits is 720, while the sum is 21.

The square root of 140650320 is about 11859.6087625183. The cubic root of 140650320 is about 520.0521643921.

The spelling of 140650320 in words is "one hundred forty million, six hundred fifty thousand, three hundred twenty".