6920040 has 32 divisors (see below), whose sum is σ = 20760480. Its totient is φ = 1845312.

The previous prime is 6919993. The next prime is 6920041. The reversal of 6920040 is 400296.

It is a junction number, because it is equal to n+sod(n) for n = 6919989 and 6920016.

It is not an unprimeable number, because it can be changed into a prime (6920041) 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, 28714 + ... + 28953.

It is an arithmetic number, because the mean of its divisors is an integer number (648765).

Almost surely, 2^6920040 is an apocalyptic number.

6920040 is a gapful number since it is divisible by the number (60) formed by its first and last digit.

It is an amenable number.

6920040 is an abundant number, since it is smaller than the sum of its proper divisors (13840440).

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

6920040 is a wasteful number, since it uses less digits than its factorization.

6920040 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 57681 (or 57677 counting only the distinct ones).

The product of its (nonzero) digits is 432, while the sum is 21.

The square root of 6920040 is about 2630.5968904414. The cubic root of 6920040 is about 190.5619558609.

It can be divided in two parts, 6 and 920040, that added together give a triangular number (920046 = T₁₃₅₆).

The spelling of 6920040 in words is "six million, nine hundred twenty thousand, forty".