140385630 has 64 divisors (see below), whose sum is σ = 420069888. Its totient is φ = 29170560.

The previous prime is 140385617. The next prime is 140385647. The reversal of 140385630 is 36583041.

140385630 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×140385630² = 39416250220993800, which contains 22 as substring.

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

It is a Curzon number.

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, 28077 + ... + 32696.

It is an arithmetic number, because the mean of its divisors is an integer number (6563592).

Almost surely, 2^140385630 is an apocalyptic number.

140385630 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

140385630 is an abundant number, since it is smaller than the sum of its proper divisors (279684258).

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

140385630 is a wasteful number, since it uses less digits than its factorization.

140385630 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 60801.

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

The square root of 140385630 is about 11848.4442016663. Note that the first 3 decimals coincide. The cubic root of 140385630 is about 519.7257306110.

The spelling of 140385630 in words is "one hundred forty million, three hundred eighty-five thousand, six hundred thirty".