74490544 has 10 divisors (see below), whose sum is σ = 144325460. Its totient is φ = 37245264.

The previous prime is 74490541. The next prime is 74490569. The reversal of 74490544 is 44509447.

It is a happy number.

It is a super-2 number, since 2×74490544² = 11097682290831872, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (74490541) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2327814 + ... + 2327845.

It is an arithmetic number, because the mean of its divisors is an integer number (14432546).

Almost surely, 2^74490544 is an apocalyptic number.

It is an amenable number.

74490544 is a deficient number, since it is larger than the sum of its proper divisors (69834916).

74490544 is a wasteful number, since it uses less digits than its factorization.

74490544 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4655667 (or 4655661 counting only the distinct ones).

The product of its (nonzero) digits is 80640, while the sum is 37.

The square root of 74490544 is about 8630.7904620608. The cubic root of 74490544 is about 420.7592916520.

The spelling of 74490544 in words is "seventy-four million, four hundred ninety thousand, five hundred forty-four".