140984690 has 64 divisors (see below), whose sum is σ = 318014208. Its totient is φ = 43718400.

The previous prime is 140984677. The next prime is 140984699. The reversal of 140984690 is 96489041.

It is a super-2 number, since 2×140984690² = 39753365628792200, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (140984699) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 212960 + ... + 213620.

It is an arithmetic number, because the mean of its divisors is an integer number (4968972).

Almost surely, 2^140984690 is an apocalyptic number.

140984690 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

140984690 is the 9695-th pentagonal number.

140984690 is an abundant number, since it is smaller than the sum of its proper divisors (177029518).

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

140984690 is a wasteful number, since it uses less digits than its factorization.

140984690 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 963.

The product of its (nonzero) digits is 62208, while the sum is 41.

The square root of 140984690 is about 11873.6974022416. The cubic root of 140984690 is about 520.4639473799.

The spelling of 140984690 in words is "one hundred forty million, nine hundred eighty-four thousand, six hundred ninety".