745147480 has 64 divisors (see below), whose sum is σ = 2090292480. Its totient is φ = 232252800.

The previous prime is 745147471. The next prime is 745147483. The reversal of 745147480 is 84741547.

It is a happy number.

It is a Smith number, since the sum of its digits (40) coincides with the sum of the digits of its prime factors.

It is a Harshad number since it is a multiple of its sum of digits (40).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (745147483) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 117886 + ... + 124045.

It is an arithmetic number, because the mean of its divisors is an integer number (32660820).

Almost surely, 2^745147480 is an apocalyptic number.

745147480 is a gapful number since it is divisible by the number (70) formed by its first and last digit.

It is an amenable number.

745147480 is an abundant number, since it is smaller than the sum of its proper divisors (1345145000).

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

745147480 is a wasteful number, since it uses less digits than its factorization.

745147480 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 241960 (or 241956 counting only the distinct ones).

The product of its (nonzero) digits is 125440, while the sum is 40.

The square root of 745147480 is about 27297.3896187896. The cubic root of 745147480 is about 906.5965854377.

It can be divided in two parts, 745 and 147480, that added together give a square (148225 = 385²).

The spelling of 745147480 in words is "seven hundred forty-five million, one hundred forty-seven thousand, four hundred eighty".