4015040 has 28 divisors (see below), whose sum is σ = 9561576. Its totient is φ = 1605888.

The previous prime is 4015031. The next prime is 4015049. The reversal of 4015040 is 405104.

It is an interprime number because it is at equal distance from previous prime (4015031) and next prime (4015049).

It is a super-2 number, since 2×4015040² = 32241092403200, which contains 22 as substring.

It is a zygodrome in base 4.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4015049) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5954 + ... + 6593.

Almost surely, 2^4015040 is an apocalyptic number.

4015040 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

4015040 is an abundant number, since it is smaller than the sum of its proper divisors (5546536).

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

4015040 is a wasteful number, since it uses less digits than its factorization.

4015040 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12564 (or 12554 counting only the distinct ones).

The product of its (nonzero) digits is 80, while the sum is 14.

The square root of 4015040 is about 2003.7564722291. The cubic root of 4015040 is about 158.9388106256.

The spelling of 4015040 in words is "four million, fifteen thousand, forty".