745455270 has 192 divisors, whose sum is σ = 2215351296. Its totient is φ = 157194240.

The previous prime is 745455259. The next prime is 745455281. The reversal of 745455270 is 72554547.

It is an interprime number because it is at equal distance from previous prime (745455259) and next prime (745455281).

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, 4308904 + ... + 4309076.

It is an arithmetic number, because the mean of its divisors is an integer number (11538288).

Almost surely, 2^745455270 is an apocalyptic number.

745455270 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 745455270, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1107675648).

745455270 is an abundant number, since it is smaller than the sum of its proper divisors (1469896026).

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

745455270 is a wasteful number, since it uses less digits than its factorization.

745455270 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 295 (or 278 counting only the distinct ones).

The product of its (nonzero) digits is 196000, while the sum is 39.

The square root of 745455270 is about 27303.0267552885. The cubic root of 745455270 is about 906.7213942659.

The spelling of 745455270 in words is "seven hundred forty-five million, four hundred fifty-five thousand, two hundred seventy".