75490380 has 216 divisors, whose sum is σ = 277110288. Its totient is φ = 17200512.

The previous prime is 75490361. The next prime is 75490463. The reversal of 75490380 is 8309457.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is an unprimeable number.

It is a polite number, since it can be written in 71 ways as a sum of consecutive naturals, for example, 237982 + ... + 238298.

It is an arithmetic number, because the mean of its divisors is an integer number (1282918).

Almost surely, 2^75490380 is an apocalyptic number.

75490380 is a gapful number since it is divisible by the number (70) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 75490380, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (138555144).

75490380 is an abundant number, since it is smaller than the sum of its proper divisors (201619908).

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

75490380 is a wasteful number, since it uses less digits than its factorization.

75490380 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 355 (or 334 counting only the distinct ones).

The product of its (nonzero) digits is 30240, while the sum is 36.

The square root of 75490380 is about 8688.5200120619. The cubic root of 75490380 is about 422.6334534014.

The spelling of 75490380 in words is "seventy-five million, four hundred ninety thousand, three hundred eighty".