745027690 has 32 divisors (see below), whose sum is σ = 1513416960. Its totient is φ = 261576000.

The previous prime is 745027651. The next prime is 745027711. The reversal of 745027690 is 96720547.

It is a super-2 number, since 2×745027690² = 1110132517733472200, which contains 22 as substring.

It is an unprimeable number.

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 15 ways as a sum of consecutive naturals, for example, 113586 + ... + 119965.

It is an arithmetic number, because the mean of its divisors is an integer number (47294280).

Almost surely, 2^745027690 is an apocalyptic number.

745027690 is an abundant number, since it is smaller than the sum of its proper divisors (768389270).

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

745027690 is a wasteful number, since it uses less digits than its factorization.

745027690 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 233598.

The product of its (nonzero) digits is 105840, while the sum is 40.

The square root of 745027690 is about 27295.1953647524. The cubic root of 745027690 is about 906.5480013081.

The spelling of 745027690 in words is "seven hundred forty-five million, twenty-seven thousand, six hundred ninety".