74019642 has 32 divisors (see below), whose sum is σ = 152064000. Its totient is φ = 24008688.

The previous prime is 74019623. The next prime is 74019643. The reversal of 74019642 is 24691047.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (74019643) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 55459 + ... + 56777.

It is an arithmetic number, because the mean of its divisors is an integer number (4752000).

Almost surely, 2^74019642 is an apocalyptic number.

74019642 is an abundant number, since it is smaller than the sum of its proper divisors (78044358).

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

74019642 is a wasteful number, since it uses less digits than its factorization.

74019642 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1570.

The product of its (nonzero) digits is 12096, while the sum is 33.

The square root of 74019642 is about 8603.4668593539. The cubic root of 74019642 is about 419.8707879167.

The spelling of 74019642 in words is "seventy-four million, nineteen thousand, six hundred forty-two".