74919546 has 128 divisors (see below), whose sum is σ = 194745600. Its totient is φ = 21150720.

The previous prime is 74919541. The next prime is 74919547. The reversal of 74919546 is 64591947.

It is a super-2 number, since 2×74919546² = 11225876745692232, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (74919541) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 546790 + ... + 546926.

It is an arithmetic number, because the mean of its divisors is an integer number (1521450).

Almost surely, 2^74919546 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 74919546, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (97372800).

74919546 is an abundant number, since it is smaller than the sum of its proper divisors (119826054).

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

74919546 is a wasteful number, since it uses less digits than its factorization.

74919546 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 221 (or 215 counting only the distinct ones).

The product of its digits is 272160, while the sum is 45.

The square root of 74919546 is about 8655.6077776202. The cubic root of 74919546 is about 421.5654841838.

The spelling of 74919546 in words is "seventy-four million, nine hundred nineteen thousand, five hundred forty-six".