75231450 has 192 divisors, whose sum is σ = 249984000. Its totient is φ = 16251840.

The previous prime is 75231439. The next prime is 75231461. The reversal of 75231450 is 5413257.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (75231439) and next prime (75231461).

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 179341 + ... + 179759.

It is an arithmetic number, because the mean of its divisors is an integer number (1302000).

Almost surely, 2^75231450 is an apocalyptic number.

75231450 is a gapful number since it is divisible by the number (70) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 75231450, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (124992000).

75231450 is an abundant number, since it is smaller than the sum of its proper divisors (174752550).

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

75231450 is a wasteful number, since it uses less digits than its factorization.

75231450 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 466 (or 455 counting only the distinct ones).

The product of its (nonzero) digits is 4200, while the sum is 27.

The square root of 75231450 is about 8673.6065163230. The cubic root of 75231450 is about 422.1496927073.

The spelling of 75231450 in words is "seventy-five million, two hundred thirty-one thousand, four hundred fifty".