140083770 has 64 divisors (see below), whose sum is σ = 360650880. Its totient is φ = 34714368.

The previous prime is 140083763. The next prime is 140083787. The reversal of 140083770 is 77380041.

It is a happy number.

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

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 31 ways as a sum of consecutive naturals, for example, 27892 + ... + 32528.

It is an arithmetic number, because the mean of its divisors is an integer number (5635170).

Almost surely, 2^140083770 is an apocalyptic number.

140083770 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 140083770, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (180325440).

140083770 is an abundant number, since it is smaller than the sum of its proper divisors (220567110).

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

140083770 is a wasteful number, since it uses less digits than its factorization.

140083770 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4719.

The product of its (nonzero) digits is 4704, while the sum is 30.

The square root of 140083770 is about 11835.6989654181. The cubic root of 140083770 is about 519.3529550668.

The spelling of 140083770 in words is "one hundred forty million, eighty-three thousand, seven hundred seventy".