4000734 has 24 divisors (see below), whose sum is σ = 8854560. Its totient is φ = 1304928.

The previous prime is 4000723. The next prime is 4000741. The reversal of 4000734 is 4370004.

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1519 + ... + 3210.

It is an arithmetic number, because the mean of its divisors is an integer number (368940).

Almost surely, 2^4000734 is an apocalyptic number.

4000734 is an abundant number, since it is smaller than the sum of its proper divisors (4853826).

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

4000734 is a wasteful number, since it uses less digits than its factorization.

4000734 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4784 (or 4781 counting only the distinct ones).

The product of its (nonzero) digits is 336, while the sum is 18.

The square root of 4000734 is about 2000.1834915827. The cubic root of 4000734 is about 158.7498142061.

Adding to 4000734 its reverse (4370004), we get a palindrome (8370738).

The spelling of 4000734 in words is "four million, seven hundred thirty-four", and thus it is an aban number.