140375780 has 24 divisors (see below), whose sum is σ = 302758008. Its totient is φ = 54632448.

The previous prime is 140375771. The next prime is 140375789. The reversal of 140375780 is 87573041.

140375780 is nontrivially palindromic in base 6.

It is an interprime number because it is at equal distance from previous prime (140375771) and next prime (140375789).

It can be written as a sum of positive squares in 4 ways, for example, as 50239744 + 90136036 = 7088^2 + 9494^2 .

It is a super-2 number, since 2×140375780² = 39410719221216800, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 140375780.

It is not an unprimeable number, because it can be changed into a prime (140375789) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 94109 + ... + 95588.

It is an arithmetic number, because the mean of its divisors is an integer number (12614917).

Almost surely, 2^140375780 is an apocalyptic number.

140375780 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

140375780 is an abundant number, since it is smaller than the sum of its proper divisors (162382228).

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

140375780 is a wasteful number, since it uses less digits than its factorization.

140375780 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 189743 (or 189741 counting only the distinct ones).

The product of its (nonzero) digits is 23520, while the sum is 35.

The square root of 140375780 is about 11848.0285279873. The cubic root of 140375780 is about 519.7135750027.

The spelling of 140375780 in words is "one hundred forty million, three hundred seventy-five thousand, seven hundred eighty".