747440190 has 256 divisors, whose sum is σ = 2472560640. Its totient is φ = 156764160.

The previous prime is 747440179. The next prime is 747440191. The reversal of 747440190 is 91044747.

It is a super-2 number, since 2×747440190² = 1117333675254472200, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (747440191) by changing a digit.

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 127 ways as a sum of consecutive naturals, for example, 1381320 + ... + 1381860.

It is an arithmetic number, because the mean of its divisors is an integer number (9658440).

Almost surely, 2^747440190 is an apocalyptic number.

747440190 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 747440190, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1236280320).

747440190 is an abundant number, since it is smaller than the sum of its proper divisors (1725120450).

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

747440190 is a wasteful number, since it uses less digits than its factorization.

747440190 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 624 (or 618 counting only the distinct ones).

The product of its (nonzero) digits is 28224, while the sum is 36.

The square root of 747440190 is about 27339.3524063757. The cubic root of 747440190 is about 907.5254551975.

The spelling of 747440190 in words is "seven hundred forty-seven million, four hundred forty thousand, one hundred ninety".