75400407 has 24 divisors (see below), whose sum is σ = 111618000. Its totient is φ = 49031808.

The previous prime is 75400399. The next prime is 75400421. The reversal of 75400407 is 70400457.

It is not a de Polignac number, because 75400407 - 2³ = 75400399 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (75400007) 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, 78643 + ... + 79595.

It is an arithmetic number, because the mean of its divisors is an integer number (4650750).

Almost surely, 2^75400407 is an apocalyptic number.

75400407 is a deficient number, since it is larger than the sum of its proper divisors (36217593).

75400407 is a wasteful number, since it uses less digits than its factorization.

75400407 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1167 (or 1164 counting only the distinct ones).

The product of its (nonzero) digits is 3920, while the sum is 27.

The square root of 75400407 is about 8683.3407741491. The cubic root of 75400407 is about 422.4654818152.

The spelling of 75400407 in words is "seventy-five million, four hundred thousand, four hundred seven".