745378620 has 96 divisors (see below), whose sum is σ = 2390169600. Its totient is φ = 170018304.

The previous prime is 745378577. The next prime is 745378639. The reversal of 745378620 is 26873547.

It is a Harshad number since it is a multiple of its sum of digits (42).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 237421 + ... + 240539.

It is an arithmetic number, because the mean of its divisors is an integer number (24897600).

Almost surely, 2^745378620 is an apocalyptic number.

745378620 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 745378620, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1195084800).

745378620 is an abundant number, since it is smaller than the sum of its proper divisors (1644790980).

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

745378620 is a wasteful number, since it uses less digits than its factorization.

745378620 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3707 (or 3705 counting only the distinct ones).

The product of its (nonzero) digits is 282240, while the sum is 42.

The square root of 745378620 is about 27301.6230286773. The cubic root of 745378620 is about 906.6903159080.

The spelling of 745378620 in words is "seven hundred forty-five million, three hundred seventy-eight thousand, six hundred twenty".