74701840 has 40 divisors (see below), whose sum is σ = 174453120. Its totient is φ = 29748096.

The previous prime is 74701801. The next prime is 74701843. The reversal of 74701840 is 4810747.

It is a tau number, because it is divible by the number of its divisors (40).

It is not an unprimeable number, because it can be changed into a prime (74701843) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 17167 + ... + 21073.

It is an arithmetic number, because the mean of its divisors is an integer number (4361328).

Almost surely, 2^74701840 is an apocalyptic number.

It is an amenable number.

74701840 is an abundant number, since it is smaller than the sum of its proper divisors (99751280).

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

74701840 is a wasteful number, since it uses less digits than its factorization.

74701840 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4159 (or 4153 counting only the distinct ones).

The product of its (nonzero) digits is 6272, while the sum is 31.

The square root of 74701840 is about 8643.0226194312. The cubic root of 74701840 is about 421.1567507203.

The spelling of 74701840 in words is "seventy-four million, seven hundred one thousand, eight hundred forty".