140006412 has 72 divisors (see below), whose sum is σ = 435585696. Its totient is φ = 36923904.

The previous prime is 140006411. The next prime is 140006423. The reversal of 140006412 is 214600041.

It is a super-2 number, since 2×140006412² = 39203590802227488, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is not an unprimeable number, because it can be changed into a prime (140006411) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 18093 + ... + 24644.

Almost surely, 2^140006412 is an apocalyptic number.

140006412 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

140006412 is an abundant number, since it is smaller than the sum of its proper divisors (295579284).

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

140006412 is a wasteful number, since it uses less digits than its factorization.

140006412 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 42767 (or 42762 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 18.

The square root of 140006412 is about 11832.4305195509. The cubic root of 140006412 is about 519.2573372718.

Adding to 140006412 its reverse (214600041), we get a palindrome (354606453).

The spelling of 140006412 in words is "one hundred forty million, six thousand, four hundred twelve".