7406040 has 32 divisors (see below), whose sum is σ = 22218480. Its totient is φ = 1974912.

The previous prime is 7406017. The next prime is 7406041. The reversal of 7406040 is 406047.

It is a junction number, because it is equal to n+sod(n) for n = 7405998 and 7406016.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (7406041) 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, 30739 + ... + 30978.

Almost surely, 2^7406040 is an apocalyptic number.

It is an amenable number.

7406040 is an abundant number, since it is smaller than the sum of its proper divisors (14812440).

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

7406040 is a wasteful number, since it uses less digits than its factorization.

7406040 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 61731 (or 61727 counting only the distinct ones).

The product of its (nonzero) digits is 672, while the sum is 21.

The square root of 7406040 is about 2721.4040493833. The cubic root of 7406040 is about 194.9225201721.

The spelling of 7406040 in words is "seven million, four hundred six thousand, forty".