7404157 has 4 divisors (see below), whose sum is σ = 7417696. Its totient is φ = 7390620.

The previous prime is 7404101. The next prime is 7404161. The reversal of 7404157 is 7514047.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 7404157 - 2⁷ = 7404029 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (7404457) 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, 5913 + ... + 7054.

It is an arithmetic number, because the mean of its divisors is an integer number (1854424).

Almost surely, 2^7404157 is an apocalyptic number.

It is an amenable number.

7404157 is a deficient number, since it is larger than the sum of its proper divisors (13539).

7404157 is a wasteful number, since it uses less digits than its factorization.

7404157 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13538.

The product of its (nonzero) digits is 3920, while the sum is 28.

The square root of 7404157 is about 2721.0580662676. The cubic root of 7404157 is about 194.9059989626.

The spelling of 7404157 in words is "seven million, four hundred four thousand, one hundred fifty-seven".