745870455 has 24 divisors (see below), whose sum is σ = 1410374160. Its totient is φ = 361633920.

The previous prime is 745870439. The next prime is 745870481. The reversal of 745870455 is 554078547.

It is not a de Polignac number, because 745870455 - 2⁴ = 745870439 is a prime.

It is a super-3 number, since 3×745870455³ (a number of 28 digits) contains 333 as substring.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a self number, because there is not a number n which added to its sum of digits gives 745870455.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 752910 + ... + 753899.

It is an arithmetic number, because the mean of its divisors is an integer number (58765590).

Almost surely, 2^745870455 is an apocalyptic number.

745870455 is a deficient number, since it is larger than the sum of its proper divisors (664503705).

745870455 is a wasteful number, since it uses less digits than its factorization.

745870455 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1506831 (or 1506828 counting only the distinct ones).

The product of its (nonzero) digits is 784000, while the sum is 45.

The square root of 745870455 is about 27310.6289748149. The cubic root of 745870455 is about 906.8896973459.

The spelling of 745870455 in words is "seven hundred forty-five million, eight hundred seventy thousand, four hundred fifty-five".