7457494 has 16 divisors (see below), whose sum is σ = 12405456. Its totient is φ = 3333600.

The previous prime is 7457479. The next prime is 7457503. The reversal of 7457494 is 4947547.

It is a super-2 number, since 2×7457494² = 111228433520072, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1437 + ... + 4120.

It is an arithmetic number, because the mean of its divisors is an integer number (775341).

Almost surely, 2^7457494 is an apocalyptic number.

7457494 is a deficient number, since it is larger than the sum of its proper divisors (4947962).

7457494 is a wasteful number, since it uses less digits than its factorization.

7457494 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5631.

The product of its digits is 141120, while the sum is 40.

The square root of 7457494 is about 2730.8412623219. The cubic root of 7457494 is about 195.3728915626.

The spelling of 7457494 in words is "seven million, four hundred fifty-seven thousand, four hundred ninety-four".