4000145694 has 16 divisors (see below), whose sum is σ = 8348130432. Its totient is φ = 1275408728.

The previous prime is 4000145693. The next prime is 4000145759. The reversal of 4000145694 is 4965410004.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4000145693) 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, 14493144 + ... + 14493419.

It is an arithmetic number, because the mean of its divisors is an integer number (521758152).

Almost surely, 2^4000145694 is an apocalyptic number.

4000145694 is an abundant number, since it is smaller than the sum of its proper divisors (4347984738).

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

4000145694 is a wasteful number, since it uses less digits than its factorization.

4000145694 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28986591.

The product of its (nonzero) digits is 17280, while the sum is 33.

The square root of 4000145694 is about 63246.7050050831. The cubic root of 4000145694 is about 1587.4203246349.

Adding to 4000145694 its reverse (4965410004), we get a palindrome (8965555698).

The spelling of 4000145694 in words is "four billion, one hundred forty-five thousand, six hundred ninety-four".