74519445 has 96 divisors (see below), whose sum is σ = 163175040. Its totient is φ = 28546560.

The previous prime is 74519441. The next prime is 74519447. The reversal of 74519445 is 54491547.

It is not a de Polignac number, because 74519445 - 2² = 74519441 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (39).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (74519441) by changing a digit.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 104751 + ... + 105459.

It is an arithmetic number, because the mean of its divisors is an integer number (1699740).

Almost surely, 2^74519445 is an apocalyptic number.

It is an amenable number.

74519445 is an abundant number, since it is smaller than the sum of its proper divisors (88655595).

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

74519445 is a wasteful number, since it uses less digits than its factorization.

74519445 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 755 (or 748 counting only the distinct ones).

The product of its digits is 100800, while the sum is 39.

The square root of 74519445 is about 8632.4645959309. The cubic root of 74519445 is about 420.8137003116.

The spelling of 74519445 in words is "seventy-four million, five hundred nineteen thousand, four hundred forty-five".