7401906 has 48 divisors (see below), whose sum is σ = 17634240. Its totient is φ = 2233440.

The previous prime is 7401899. The next prime is 7401907. The reversal of 7401906 is 6091047.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 7401906.

It is not an unprimeable number, because it can be changed into a prime (7401907) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 7396 + ... + 8336.

It is an arithmetic number, because the mean of its divisors is an integer number (367380).

Almost surely, 2^7401906 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 7401906, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (8817120).

7401906 is an abundant number, since it is smaller than the sum of its proper divisors (10232334).

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

7401906 is a wasteful number, since it uses less digits than its factorization.

7401906 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 991 (or 988 counting only the distinct ones).

The product of its (nonzero) digits is 1512, while the sum is 27.

The square root of 7401906 is about 2720.6444089590. The cubic root of 7401906 is about 194.8862452903.

The spelling of 7401906 in words is "seven million, four hundred one thousand, nine hundred six".